{"title":"Server Memory","description":"\u003cp\u003eServer memory is essential for processing data from hard disk drives or solid-state drives to the CPU. It includes RAM (Random Access Memory), which is volatile and retains data only when powered, making it unsuitable for permanent storage. However, RAM’s read and write speeds are significantly faster than those of storage memory.\u003c\/p\u003e\n\u003cp\u003eDirect access to server RAM by the CPU eliminates the need to search the hard drive for data or instructions. Additionally, server memory generates less heat and is more resistant to wear over time.\u003c\/p\u003e","products":[{"product_id":"samsung-32gb-2400mhz-ddr4-pc4-19200-ecc-m393a4k40cb1-crc4q","title":"Samsung 32GB 2400MHz DDR4 PC4-19200 ECC Registered CL17 288-Pin DIMM 1.2V Dual Rank x4 Memory Module - M393A4K40CB1-CRC4Q","description":"\u003ch2\u003eWhat Is the Samsung M393A4K40CB1-CRC4Q 32GB DDR4-2400 RDIMM?\u003c\/h2\u003e\n\u003cp\u003eThe Samsung M393A4K40CB1-CRC4Q is a genuine 32GB DDR4 server memory module. It runs at 2400MHz on the PC4-19200 standard. This module has an ECC Registered design with a dual-rank, x4 layout. It uses a standard 288-pin form factor at 1.2V.\u003c\/p\u003e\n\u003cp\u003eECC Registered memory checks itself while the server runs. It catches small errors early and stops them before they cause a crash or lost data. The module carries a CL17 latency rating for steady performance at this speed.\u003c\/p\u003e\n\u003ch2\u003eSamsung M393A4K40CB1-CRC4Q Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBrand: Samsung\u003c\/li\u003e\n\u003cli\u003ePart Number: M393A4K40CB1-CRC4Q\u003c\/li\u003e\n\u003cli\u003eCapacity: 32GB\u003c\/li\u003e\n\u003cli\u003eSpeed: 2400MHz (PC4-19200)\u003c\/li\u003e\n\u003cli\u003eMemory Type: DDR4 ECC Registered (RDIMM)\u003c\/li\u003e\n\u003cli\u003eCAS Latency: CL17\u003c\/li\u003e\n\u003cli\u003eRank and Width: Dual-Rank, x4\u003c\/li\u003e\n\u003cli\u003eVoltage: 1.2V\u003c\/li\u003e\n\u003cli\u003ePin Count: 288\u003c\/li\u003e\n\u003cli\u003eForm Factor: Standard Height RDIMM\u003c\/li\u003e\n\u003cli\u003eCondition: Refurbished, tested, and verified functional\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhich Servers Use This Module?\u003c\/h2\u003e\n\u003cp\u003eThis module fits enterprise servers built for DDR4-2400 registered memory. Many Dell PowerEdge, HP ProLiant, and Lenovo ThinkSystem models from this generation use this exact type. Intel Xeon Scalable platforms commonly support this speed. Always check your exact model's supported memory list first.\u003c\/p\u003e\n\u003ch2\u003eIs This Module New or Refurbished?\u003c\/h2\u003e\n\u003cp\u003eThis module is refurbished, not new. Each one is cleaned and tested first. This confirms it works before it gets listed. The chips are genuine Samsung dies, not a generic copy. A 30-day warranty covers every order.\u003c\/p\u003e\n\u003ch2\u003eBest Uses for This Memory Module\u003c\/h2\u003e\n\u003cp\u003eThis module suits a server that needs more memory for virtualization or database work. It also replaces a failed 32GB stick with a matched, tested part. Since Samsung memory is not vendor-locked, it works well when standardizing across a mixed fleet of server brands.\u003c\/p\u003e\n\u003ch2\u003eCommon Questions\u003c\/h2\u003e\n\u003ch3\u003eCan this run faster than 2400MHz if my server supports it?\u003c\/h3\u003e\n\u003cp\u003eNo. The module is rated for 2400MHz and will not exceed that speed, even in a board that supports faster memory.\u003c\/p\u003e\n\u003ch3\u003eWhat does dual-rank x4 mean for this module?\u003c\/h3\u003e\n\u003cp\u003eIt packs two ranks of x4-wide memory chips onto one stick, which balances capacity and compatibility across most enterprise server platforms.\u003c\/p\u003e","brand":"Samsung","offers":[{"title":"Default Title","offer_id":62810269090163,"sku":"M393A4K40CB1-CRC4Q","price":275.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0992\/9546\/1747\/files\/dm_m393a4k40cb1-crc4q_1.jpg?v=1778004211"},{"product_id":"micron-16gb-2666mhz-ddr4-pc4-21300-ec-mta36asf2g72pz-2g6b2","title":"Micron 16GB 2666MHz DDR4 PC4-21300 ECC Registered CL19 288-Pin DIMM 1.2V Dual Rank x4 Memory Module - MTA36ASF2G72PZ-2G6B2","description":"\u003ch2 dir=\"ltr\"\u003e\n\u003cspan\u003eMicron 16GB DDR4-2666MHz ECC Registered Server Memory (PC4-21300) \u003c\/span\u003e\u003cspan\u003ePart# MTA36ASF2G72PZ-2G6B2\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThis Micron 16GB DDR4-2666MHz ECC RDIMM is a genuine Micron memory module built for enterprise server upgrades. As a PC4-21300 server memory 16GB module identified by Micron part number MTA36ASF2G72PZ-2G6B2, it delivers fast, error-corrected bandwidth for demanding workloads.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eSpecification-wise, this is a DDR4 2666MHz CL19 Dual Rank ECC Registered module operating at 1.2V, engineered for virtualization, database, and other performance-intensive enterprise applications. Offered as refurbished Micron server RAM 16GB, every module is thoroughly cleaned, tested, and verified before shipping.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cspan\u003eKey Specifications:\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eBrand: Micron\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003ePart Number: MTA36ASF2G72PZ-2G6B2\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eCapacity: 16GB (single module)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eSpeed: DDR4-2666MHz (PC4-21300)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eType: ECC Registered (RDIMM)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eForm Factor: 288-Pin DIMM\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eRank\/Width: 2Rx4 (Dual Rank)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eVoltage: 1.2V\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eCAS Latency: CL19\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eCondition: Refurbished, tested, cleaned, and verified functional\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cspan\u003eCompatibility:\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThis module works in any server or workstation platform that supports DDR4-2666MHz ECC Registered RDIMM at 1.2V with a 288-pin, 2Rx4 configuration. Please check your system or motherboard's supported memory list (QVL) to confirm compatibility before ordering.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cspan\u003eWhy Choose This Module:\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eECC Protection\u003c\/span\u003e\u003cspan\u003e — detects and corrects single-bit memory errors, keeping your server stable and your data accurate around the clock.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eRegistered (Buffered) Design\u003c\/span\u003e\u003cspan\u003e — lowers electrical load on the memory controller, supporting reliable operation in dense, multi-DIMM server builds.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eMicron Quality\u003c\/span\u003e\u003cspan\u003e — manufactured in-house from silicon to module, giving you consistent enterprise-grade reliability.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eRefurbished \u0026amp; Tested\u003c\/span\u003e\u003cspan\u003e — thoroughly cleaned, checked, and tested to perform like new, backed by our 30-day return policy.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cspan\u003eIdeal For:\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eServer memory upgrades, virtualization hosts, database servers, cloud infrastructure, and any enterprise environment needing reliable, high-throughput ECC memory.\u003c\/span\u003e\u003c\/p\u003e","brand":"Micron","offers":[{"title":"Default Title","offer_id":62810269122931,"sku":"MTA36ASF2G72PZ-2G6B2","price":130.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0992\/9546\/1747\/files\/dm_mta36asf2g72pz-2g6b2_1.jpg?v=1778004212"},{"product_id":"hpe-16gb-2666mhz-ddr4-pc4-21300-ecc-unbuffered-p06773-001","title":"HPE 16GB 2666MHz DDR4 PC4-21300 ECC Unbuffered CL19 288-Pin DIMM 1.2V Dual Rank x8 Memory Module - P06773-001","description":"\u003ch2\u003eHPE 16GB DDR4 ECC Unbuffered Server Memory\u003c\/h2\u003e\u003cp\u003eMaintain or expand a compatible HPE server memory configuration with a 16GB DDR4 ECC Unbuffered DIMM. This module is suited to replacement projects, capacity balancing, and business workloads that require error-correcting memory with a defined 2666MHz specification.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e16GB capacity for compatible systems\u003c\/li\u003e\n\u003cli\u003eECC Unbuffered memory design\u003c\/li\u003e\n\u003cli\u003e2666MHz DDR4 performance class\u003c\/li\u003e\n\u003cli\u003eDual-rank x8 organization\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eProduct Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e 16GB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMemory Type:\u003c\/strong\u003e DDR4 ECC Unbuffered\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeed:\u003c\/strong\u003e 2666MHz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModule Rating:\u003c\/strong\u003e PC4-21300\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCAS Latency:\u003c\/strong\u003e CL19\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePin Count:\u003c\/strong\u003e 288-pin DIMM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 1.2V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRank:\u003c\/strong\u003e Dual rank\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrganization:\u003c\/strong\u003e x8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e P06773-001\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eUse Cases\u003c\/h3\u003e\u003cp\u003eUse it for compatible server memory replacement, capacity balancing, file services, business applications, and other workloads supported by DDR4 ECC Unbuffered memory.\u003c\/p\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eCompatible with HPE server motherboards supporting 16GB DDR4 ECC Unbuffered 288-pin DIMMs at 2666MHz, PC4-21300, CL19, 1.2V, and dual-rank x8 organization.\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cdl\u003e\n\u003cdt\u003eWhat capacity does this module provide?\u003c\/dt\u003e\n\u003cdd\u003eIt provides 16GB.\u003c\/dd\u003e\n\u003cdt\u003eIs it registered memory?\u003c\/dt\u003e\n\u003cdd\u003eNo. This module is ECC Unbuffered memory.\u003c\/dd\u003e\n\u003c\/dl\u003e\u003cp\u003eA carefully matched ECC Unbuffered DIMM can help maintain a stable and balanced memory configuration in a compatible platform. This HPE module gives buyers a precise 16GB DDR4 replacement or expansion option without changing the existing server generation.\u003c\/p\u003e","brand":"HPE","offers":[{"title":"Default Title","offer_id":62810269647219,"sku":"P06773-001","price":250.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0992\/9546\/1747\/files\/dm_p06773-001_1.jpg?v=1778004237"},{"product_id":"samsung-16gb-2933mhz-ddr4-pc4-23400-ecc-m393a2k43cb2-cvfby","title":"Samsung 16GB 2933MHz DDR4 PC4-23400 ECC Registered CL21 288-Pin DIMM 1.2V Dual Rank x8 Memory Module - M393A2K43CB2-CVFBY","description":"\u003ch2 dir=\"ltr\"\u003e\n\u003cspan\u003eSamsung 16GB DDR4-2933MHz ECC Registered Server Memory (PC4-23400) \u003c\/span\u003e\u003cspan\u003ePart# M393A2K43CB2-CVFBY\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThis Samsung 16GB DDR4-2933MHz ECC RDIMM is a genuine Samsung memory module built for enterprise server upgrades. As a PC4-23400 server memory 16GB module identified by Samsung part number M393A2K43CB2-CVFBY, it delivers fast, error-corrected bandwidth for demanding workloads.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eSpecification-wise, this is a DDR4 2933MHz CL21 Dual Rank ECC Registered module operating at 1.2V, engineered for virtualization, database, and other performance-intensive enterprise applications. Offered as refurbished Samsung server RAM 16GB, every module is individually tested and cleaned before shipping to perform like new.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cspan\u003eKey Specifications:\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eBrand: Samsung\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003ePart Number: M393A2K43CB2-CVFBY\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eCapacity: 16GB (single module)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eSpeed: DDR4-2933MHz (PC4-23400)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eType: ECC Registered (RDIMM)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eForm Factor: 288-Pin DIMM\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eRank\/Width: 2Rx8 (Dual Rank)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eVoltage: 1.2V\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eCAS Latency: CL21\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eCondition: Refurbished — tested, cleaned, and verified functional\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cspan\u003eCompatibility:\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThis module works in any server or workstation platform that supports DDR4-2933MHz ECC Registered RDIMM at 1.2V with a 288-pin, 2Rx8 configuration. Please check your system or motherboard's supported memory list (QVL) to confirm compatibility before ordering.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cspan\u003eWhy Choose This Module:\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eECC Protection\u003c\/span\u003e\u003cspan\u003e — automatically detects and corrects single-bit memory errors, keeping your server stable and your data accurate around the clock.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eRegistered (Buffered) Design\u003c\/span\u003e\u003cspan\u003e — reduces electrical load on the memory controller, supporting stable operation in dense, multi-DIMM server configurations.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eSamsung Quality\u003c\/span\u003e\u003cspan\u003e — manufactured to strict enterprise reliability standards, trusted by data centers worldwide.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eRefurbished \u0026amp; Tested\u003c\/span\u003e\u003cspan\u003e — thoroughly cleaned, checked, and tested to perform like new, backed by our 30-day return policy.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cspan\u003eIdeal For:\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eServer memory upgrades, virtualization hosts, database servers, cloud infrastructure, and any enterprise environment needing reliable, high-throughput ECC memory.\u003c\/span\u003e\u003c\/p\u003e","brand":"Samsung","offers":[{"title":"Default Title","offer_id":62810269712755,"sku":"M393A2K43CB2-CVFBY","price":165.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0992\/9546\/1747\/files\/dm_m393a2k43cb2-cvfby.jpg?v=1778004244"},{"product_id":"samsung-32gb-2933mhz-ddr4-pc4-23400-ecc-m393a4k40cb2-cvfby","title":"Samsung 32GB 2933MHz DDR4 PC4-23400 ECC-Registered CL21 288-Pin DIMM 1.2V Dual Rank x4 Memory Module - M393A4K40CB2-CVFBY","description":"\u003ch2 dir=\"ltr\"\u003e\u003cspan\u003eSamsung 32GB DDR4-2933MHz ECC Registered Server Memory (PC4-23400) Part# M393A4K40CB2-CVFBY\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThis Samsung 32GB DDR4-2933MHz ECC RDIMM is a genuine Samsung memory module built for enterprise server upgrades. As a PC4-23400 server memory 32GB module identified by Samsung part number M393A4K40CB2-CVFBY, it delivers fast, error-corrected bandwidth for demanding workloads.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eSpecification-wise, this is a DDR4 2933MHz CL21 Dual Rank ECC Registered module operating at 1.2V, engineered for virtualization, database, and other performance-intensive enterprise applications. Offered as refurbished Samsung server RAM 32GB, every module is individually tested and cleaned before shipping to perform like new.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cspan\u003eKey Specifications:\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eBrand: Samsung\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003ePart Number: M393A4K40CB2-CVFBY\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eCapacity: 32GB (single module)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eSpeed: DDR4-2933MHz (PC4-23400)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eType: ECC Registered (RDIMM)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eForm Factor: 288-Pin DIMM\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eRank\/Width: 2Rx4 (Dual Rank)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eVoltage: 1.2V\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eCAS Latency: CL21\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eCondition: Refurbished — tested, cleaned, and verified functional\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cspan\u003eCompatibility:\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThis module works in any server or workstation platform that supports DDR4-2933MHz ECC Registered RDIMM at 1.2V with a 288-pin, 2Rx4 configuration. Please check your system or motherboard's supported memory list (QVL) to confirm compatibility before ordering.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cspan\u003eWhy Choose This Module:\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eECC Protection\u003c\/span\u003e\u003cspan\u003e — automatically detects and corrects single-bit memory errors, keeping your server stable and your data accurate around the clock.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eRegistered (Buffered) Design\u003c\/span\u003e\u003cspan\u003e — reduces electrical load on the memory controller, supporting stable operation in dense, multi-DIMM server configurations.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eSamsung Quality\u003c\/span\u003e\u003cspan\u003e — manufactured to strict enterprise reliability standards, trusted by data centers worldwide.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eRefurbished \u0026amp; Tested\u003c\/span\u003e\u003cspan\u003e — thoroughly cleaned, checked, and tested to perform like new, backed by our 30-day return policy.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cspan\u003eIdeal For:\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eServer memory upgrades, virtualization hosts, database servers, cloud infrastructure, and any enterprise environment needing reliable, high-throughput ECC memory.\u003c\/span\u003e\u003c\/p\u003e","brand":"Samsung","offers":[{"title":"Default Title","offer_id":62810269745523,"sku":"M393A4K40CB2-CVFBY","price":330.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0992\/9546\/1747\/files\/dm_m393a4k40cb2-cvfby_5.jpg?v=1778004243"},{"product_id":"hpe-16gb-2666mhz-ddr4-pc4-21300-ecc-registered-840756-091","title":"HPE 16GB 2666MHz DDR4 PC4-21300 ECC Registered CL19 288-Pin DIMM 1.2V Dual Rank x8 Memory Module - 840756-091","description":"\u003ch2\u003eHPE 16GB DDR4-2666 ECC Registered DIMM — 840756-091\u003c\/h2\u003e\u003cp\u003eThe HPE 840756-091 is a 16GB DDR4-2666 (PC4-21300) ECC Registered DIMM in a dual-rank 2Rx8 configuration for HPE ProLiant Gen10 servers. Operating at 1.2V with CL19 latency, the 2Rx8 layout uses x8 DRAM devices — offering a different electrical profile from 2Rx4 modules at the same capacity — and carries an HPE factory\/OEM configuration suffix.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e16GB DDR4-2666 RDIMM factory variant — 2Rx8 configuration for Gen10 ProLiant platforms\u003c\/li\u003e\n\u003cli\u003e2666MHz (PC4-21300) for Intel Xeon Scalable 1st\/2nd Gen server memory bandwidth\u003c\/li\u003e\n\u003cli\u003eDual-rank 2Rx8 architecture using x8-wide DRAM devices for cost-effective 16GB density\u003c\/li\u003e\n\u003cli\u003e1.2V ECC registered operation for reliable multi-DIMM server configurations\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eProduct Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePart Number: 840756-091\u003c\/li\u003e\n\u003cli\u003eManufacturer: HPE\u003c\/li\u003e\n\u003cli\u003eCapacity: 16GB\u003c\/li\u003e\n\u003cli\u003eType: DDR4 ECC Registered (RDIMM)\u003c\/li\u003e\n\u003cli\u003eSpeed: 2666MHz (PC4-21300)\u003c\/li\u003e\n\u003cli\u003eCAS Latency: CL19\u003c\/li\u003e\n\u003cli\u003eVoltage: 1.2V\u003c\/li\u003e\n\u003cli\u003eRanks x Width: 2Rx8\u003c\/li\u003e\n\u003cli\u003ePins: 288-pin\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eMemory Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMemory Standard: JEDEC DDR4-2666\u003c\/li\u003e\n\u003cli\u003eError Correction: ECC (Error Correcting Code)\u003c\/li\u003e\n\u003cli\u003eBuffer Type: Registered (RDIMM)\u003c\/li\u003e\n\u003cli\u003eDRAM Generation: DDR4\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePerformance Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePeak Bandwidth: ~42.7 GB\/s (PC4-21300)\u003c\/li\u003e\n\u003cli\u003eECC Type: Single-bit error correction, multi-bit error detection\u003c\/li\u003e\n\u003cli\u003eRAS Features: Advanced ECC, rank sparing, memory mirroring (platform dependent)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eUse Cases\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eHPE ProLiant Gen10 factory-configured 16GB DDR4-2666 memory replacement\u003c\/li\u003e\n\u003cli\u003eEntry-level and mid-range Gen10 server deployments requiring 16GB per slot\u003c\/li\u003e\n\u003cli\u003eVirtualization and general-purpose application servers on Xeon Scalable Gen10\u003c\/li\u003e\n\u003cli\u003eMixed-capacity memory builds alongside 32GB modules in supported Gen10 configurations\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eHPE ProLiant DL380 Gen10, DL360 Gen10, DL180 Gen10\u003c\/li\u003e\n\u003cli\u003eHPE ProLiant ML350 Gen10, BL460c Gen10\u003c\/li\u003e\n\u003cli\u003eIntel Xeon Scalable 1st\/2nd Generation (Skylake-SP \/ Cascade Lake-SP) supporting DDR4-2666\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cdl\u003e\n\u003cdt\u003eWhat is the difference between 2Rx8 and 2Rx4 at 16GB DDR4-2666?\u003c\/dt\u003e\n\u003cdd\u003eBoth are dual-rank 16GB DDR4 RDIMMs but use different DRAM device widths. 2Rx8 uses wider x8 DRAM chips (fewer chips per rank), while 2Rx4 uses narrower x4 chips. 2Rx4 provides slightly better DRAM-level ECC (Chip Kill capable), while 2Rx8 is typically more cost-effective at the same capacity.\u003c\/dd\u003e\n\u003cdt\u003eIs 840756-091 interchangeable with 835955-B21?\u003c\/dt\u003e\n\u003cdd\u003eYes — both are HPE 16GB DDR4-2666 2Rx8 ECC RDIMM modules with identical specifications. 840756-091 is the factory\/OEM configuration variant and 835955-B21 is the option kit — they are functionally interchangeable.\u003c\/dd\u003e\n\u003cdt\u003eCan 840756-091 be mixed with 2Rx4 16GB RDIMMs in the same server?\u003c\/dt\u003e\n\u003cdd\u003eMixing 2Rx4 and 2Rx8 modules in the same memory channel is generally not recommended and may result in reduced performance or compatibility warnings. Consult HPE QuickSpecs for validated mixed-configuration rules.\u003c\/dd\u003e\n\u003c\/dl\u003e\u003cp\u003eThe HPE 840756-091 16GB DDR4-2666 2Rx8 RDIMM is a factory-configured server memory module for HPE ProLiant Gen10 platforms. Get it in stock today at a competitive price.\u003c\/p\u003e","brand":"HPE","offers":[{"title":"Default Title","offer_id":62810272235891,"sku":"840756-091","price":160.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0992\/9546\/1747\/files\/840756-091.jpg?v=1778004331"},{"product_id":"hp-8gb-2666mhz-ddr4-pc4-21300-ecc-registered-cl-864706-591","title":"HP 8GB 2666MHz DDR4 PC4-21300 ECC Registered CL19 288-Pin DIMM 1.2V Single Rank x8 Memory Module - 864706-591","description":"\u003ch2\u003eHP 864706-591 8GB DDR4-2666 ECC RDIMM — 1Rx8 Server Memory\u003c\/h2\u003e\u003cp\u003eThe HP 864706-591 is an 8GB DDR4-2666 ECC Registered DIMM providing single-rank x8 server memory for HPE ProLiant Gen9 and Gen10 servers — delivering CL19 latency at 2666MHz (PC4-21300) with 1.2V operation and full ECC error correction for reliable memory capacity expansion in HPE server platforms.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e8GB DDR4-2666 ECC RDIMM — 1Rx8 single-rank configuration for density-efficient memory expansion\u003c\/li\u003e\n\u003cli\u003eCL19 latency at 2666MHz for optimized DDR4 memory performance\u003c\/li\u003e\n\u003cli\u003eFull ECC error detection and correction for HP ProLiant server reliability\u003c\/li\u003e\n\u003cli\u003e288-pin DDR4 DIMM for standard HPE server DIMM slot compatibility\u003c\/li\u003e\n\u003cli\u003e1.2V low-voltage operation for energy-efficient server memory\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eProduct Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePart Number: 864706-591\u003c\/li\u003e\n\u003cli\u003eManufacturer: HP \/ HPE\u003c\/li\u003e\n\u003cli\u003eCapacity: 8GB\u003c\/li\u003e\n\u003cli\u003eType: DDR4 ECC Registered DIMM (RDIMM)\u003c\/li\u003e\n\u003cli\u003eSpeed: 2666MHz (PC4-21300)\u003c\/li\u003e\n\u003cli\u003eCAS Latency: CL19\u003c\/li\u003e\n\u003cli\u003eVoltage: 1.2V\u003c\/li\u003e\n\u003cli\u003eRanks x Width: 1Rx8\u003c\/li\u003e\n\u003cli\u003ePins: 288-Pin\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eMemory Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eECC: Yes — ECC Registered\u003c\/li\u003e\n\u003cli\u003eForm Factor: DIMM (288-pin, full-height)\u003c\/li\u003e\n\u003cli\u003eError Correction: Single-bit error correction, multi-bit error detection\u003c\/li\u003e\n\u003cli\u003eMemory Standard: PC4-21300 (DDR4-2666)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePerformance Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBandwidth: Up to 21,333 MB\/s theoretical peak\u003c\/li\u003e\n\u003cli\u003eECC Type: SECDED (Single Error Correct, Double Error Detect)\u003c\/li\u003e\n\u003cli\u003eRAS Features: ECC, memory mirroring support (platform dependent)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eUse Cases\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e8GB RDIMM capacity expansion for HPE ProLiant Gen9 and Gen10 server platforms\u003c\/li\u003e\n\u003cli\u003eEntry-level server memory upgrade for light workload and virtualization hosts\u003c\/li\u003e\n\u003cli\u003eReplacing failed or degraded 8GB RDIMM slots in HPE ProLiant Gen9\/Gen10\u003c\/li\u003e\n\u003cli\u003eMixed-capacity DIMM configurations in HPE servers requiring 8GB per-slot density\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eHPE ProLiant Gen9 servers: DL360, DL380, DL560, DL580 Gen9 and related platforms\u003c\/li\u003e\n\u003cli\u003eHPE ProLiant Gen10 servers: DL360, DL380, DL560, DL580 Gen10 and related platforms\u003c\/li\u003e\n\u003cli\u003eVerify maximum RDIMM speed support per HPE server model before installation\u003c\/li\u003e\n\u003cli\u003eNot compatible with non-ECC or UDIMM-only server configurations\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cdl\u003e\n\u003cdt\u003eWhat is the difference between 864706-591 and 864706-B21?\u003c\/dt\u003e\n\u003cdd\u003eThe 864706-591 and 864706-B21 are equivalent HP part numbers for the same 8GB DDR4-2666 ECC RDIMM — the -591 suffix is the HPE factory-integrated \/ bulk OEM variant, while -B21 is the standard HPE option kit for retail\/channel ordering. Both are functionally identical for server memory operation.\u003c\/dd\u003e\n\u003cdt\u003eIs the 864706-591 compatible with both Gen9 and Gen10 HPE ProLiant servers?\u003c\/dt\u003e\n\u003cdd\u003eYes — the 8GB DDR4-2666 RDIMM is compatible with both HPE Gen9 and Gen10 ProLiant servers that support DDR4-2666 ECC Registered DIMMs. Always verify your specific server model's memory compatibility matrix via the HPE Memory Configurator before installation.\u003c\/dd\u003e\n\u003cdt\u003eCan 864706-591 modules be mixed with other DDR4-2666 RDIMMs in the same server?\u003c\/dt\u003e\n\u003cdd\u003eDDR4 RDIMMs of the same speed can generally be mixed across DIMM slots, but HPE recommends using identical modules within each memory channel for optimal performance and guaranteed compatibility. Consult your server's memory population guide for recommended mixing rules.\u003c\/dd\u003e\n\u003c\/dl\u003e\u003cp\u003eThe HP 864706-591 provides 8GB DDR4-2666 ECC RDIMM capacity in a 1Rx8 single-rank configuration — delivering CL19 server memory performance with 1.2V efficiency and full ECC protection for HPE ProLiant Gen9 and Gen10 server memory expansion and replacement applications.\u003c\/p\u003e","brand":"HP","offers":[{"title":"Default Title","offer_id":62810272301427,"sku":"864706-591","price":95.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0992\/9546\/1747\/files\/864706-591.jpg?v=1778004334"},{"product_id":"samsung-64gb-2666mhz-ddr4-pc4-21300-ecc-m386a8k40bm2-ctd7q","title":"Samsung 64GB 2666MHz DDR4 PC4-21300 ECC Registered CL19 288-Pin DIMM 1.2V Quad Rank x4 Memory Module - M386A8K40BM2-CTD7Q","description":"\u003ch2\u003eWhat Is the Samsung M386A8K40BM2-CTD7Q 64GB DDR4-2666 LRDIMM?\u003c\/h2\u003e\n\u003cp\u003eThe Samsung M386A8K40BM2-CTD7Q is a genuine 64GB DDR4 server memory module. It runs at 2666MHz on the PC4-21300 standard. This module has an ECC Load Reduced design with a quad-rank, x4 layout. It uses a standard 288-pin form factor at 1.2V.\u003c\/p\u003e\n\u003cp\u003eLoad Reduced memory uses a data buffer instead of a direct register. This lets a server pack more total memory into its channels. Standard registered memory does not reach the same density. The module carries a CL19 latency rating. It still runs ECC checks throughout.\u003c\/p\u003e\n\u003ch2\u003eSamsung M386A8K40BM2-CTD7Q Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBrand: Samsung\u003c\/li\u003e\n\u003cli\u003ePart Number: M386A8K40BM2-CTD7Q\u003c\/li\u003e\n\u003cli\u003eCapacity: 64GB\u003c\/li\u003e\n\u003cli\u003eSpeed: 2666MHz (PC4-21300)\u003c\/li\u003e\n\u003cli\u003eMemory Type: DDR4 ECC Load Reduced (LRDIMM)\u003c\/li\u003e\n\u003cli\u003eCAS Latency: CL19\u003c\/li\u003e\n\u003cli\u003eRank and Width: Quad-Rank, x4\u003c\/li\u003e\n\u003cli\u003eVoltage: 1.2V\u003c\/li\u003e\n\u003cli\u003ePin Count: 288\u003c\/li\u003e\n\u003cli\u003eForm Factor: Standard Height LRDIMM\u003c\/li\u003e\n\u003cli\u003eCondition: Refurbished, tested, and verified functional\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhich Servers Use This Module?\u003c\/h2\u003e\n\u003cp\u003eThis module fits enterprise servers built for DDR4-2666 Load Reduced memory. Many Dell PowerEdge, HP ProLiant, and Lenovo ThinkSystem models support it. LRDIMM is not interchangeable with standard RDIMM. Always check your exact model's list first.\u003c\/p\u003e\n\u003ch2\u003eIs This Module New or Refurbished?\u003c\/h2\u003e\n\u003cp\u003eThis module is refurbished, not new. Each one is cleaned and tested first. This confirms it works before it gets listed. The chips are genuine Samsung dies, not a generic copy. A 30-day warranty covers every order.\u003c\/p\u003e\n\u003ch2\u003eBest Uses for This Memory Module\u003c\/h2\u003e\n\u003cp\u003eThis module suits servers that need maximum total memory across all channels. Large virtualization hosts and in-memory databases benefit most from the added density. It also replaces a failed 64GB LRDIMM with a matched, tested part.\u003c\/p\u003e\n\u003ch2\u003eCommon Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat is the difference between LRDIMM and RDIMM?\u003c\/h3\u003e\n\u003cp\u003eLRDIMM uses a data buffer to reduce electrical load, which allows higher total memory density than RDIMM. The two are not interchangeable.\u003c\/p\u003e\n\u003ch3\u003eCan I mix this with standard RDIMM in the same server?\u003c\/h3\u003e\n\u003cp\u003eNo. Most servers require all installed modules to be the same type, either all RDIMM or all LRDIMM, within a channel.\u003c\/p\u003e","brand":"Samsung","offers":[{"title":"Default Title","offer_id":62810272334195,"sku":"M386A8K40BM2-CTD7Q","price":565.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0992\/9546\/1747\/files\/m386a8k40bm2-ctd7q.jpg?v=1778004336"},{"product_id":"dell-8gb-2666mhz-ddr4-pc4-21300-ecc-registered-cl19-1vrgy","title":"Dell 8GB 2666MHz DDR4 PC4-21300 ECC Registered CL19 288-Pin DIMM 1.2V Single Rank x8 Memory Module - 1VRGY","description":"\u003ch2\u003eDell 8GB DDR4 ECC Registered Server Memory - 1VRGY\u003c\/h2\u003e\u003cp\u003eThe Dell 1VRGY is a compact server memory module for compatible platforms using DDR4 ECC registered technology. It is a practical choice for targeted capacity adjustments, matched replacement work, and maintaining supported memory configurations.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eECC registered architecture for compatible servers\u003c\/li\u003e\n\u003cli\u003eSingle-rank x8 organization\u003c\/li\u003e\n\u003cli\u003eLow-voltage operating profile\u003c\/li\u003e\n\u003cli\u003eUseful for targeted server upgrades\u003c\/li\u003e\n\u003cli\u003eSuitable for service replacement applications\u003c\/li\u003e\n\u003cli\u003eExact 1VRGY part number for identification\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eProduct Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eManufacturer: Dell\u003c\/li\u003e\n\u003cli\u003ePart Number: 1VRGY\u003c\/li\u003e\n\u003cli\u003eCapacity: 8GB\u003c\/li\u003e\n\u003cli\u003eMemory Type: DDR4 ECC Registered DIMM\u003c\/li\u003e\n\u003cli\u003eSpeed: 2666MHz\u003c\/li\u003e\n\u003cli\u003eStandard: PC4-21300\u003c\/li\u003e\n\u003cli\u003eCAS Latency: CL19\u003c\/li\u003e\n\u003cli\u003ePin Count: 288-pin\u003c\/li\u003e\n\u003cli\u003eVoltage: 1.2V\u003c\/li\u003e\n\u003cli\u003eRank: Single rank\u003c\/li\u003e\n\u003cli\u003eOrganization: x8\u003c\/li\u003e\n\u003cli\u003eProduct Type: Server Memory\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eInstallation Guidance\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eConfirm the server supports DDR4 registered ECC modules\u003c\/li\u003e\n\u003cli\u003eFollow the platform's slot and memory-channel population plan\u003c\/li\u003e\n\u003cli\u003eCheck whether the existing configuration permits mixed ranks\u003c\/li\u003e\n\u003cli\u003eVerify firmware and available slot support before installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eUse Cases\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eTargeted server memory upgrades\u003c\/li\u003e\n\u003cli\u003eReplacement of a matching single-rank module\u003c\/li\u003e\n\u003cli\u003eFile and application server maintenance\u003c\/li\u003e\n\u003cli\u003eEnterprise spare parts inventory\u003c\/li\u003e\n\u003cli\u003eCapacity balancing in supported systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFor compatible Dell servers requiring DDR4 ECC registered DIMMs\u003c\/li\u003e\n\u003cli\u003eConfirm support for the listed capacity, speed, rank, organization, and voltage\u003c\/li\u003e\n\u003cli\u003eVerify the module against the existing population plan\u003c\/li\u003e\n\u003cli\u003eUse the exact 1VRGY part number when ordering a replacement\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cdl\u003e\n\u003cdt\u003eIs the 1VRGY desktop RAM?\u003c\/dt\u003e\n\u003cdd\u003eNo. It is registered ECC server memory for compatible enterprise platforms.\u003c\/dd\u003e\n\u003cdt\u003eWhat should be verified before adding it?\u003c\/dt\u003e\n\u003cdd\u003eCheck the server's memory architecture, slot arrangement, supported ranks, and population rules.\u003c\/dd\u003e\n\u003cdt\u003eHow do I match this module?\u003c\/dt\u003e\n\u003cdd\u003eCompare the exact 1VRGY part number and the host system's full memory requirements.\u003c\/dd\u003e\n\u003c\/dl\u003e\u003cp\u003eThe Dell 1VRGY provides a focused memory solution for compatible DDR4 server platforms. Confirm the system configuration before ordering.\u003c\/p\u003e","brand":"Dell","offers":[{"title":"Default Title","offer_id":62810272366963,"sku":"1VRGY","price":110.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0992\/9546\/1747\/files\/1vrgy.jpg?v=1778004338"},{"product_id":"hp-16gb-2666mhz-ddr4-pc4-21300-ecc-registered-c-840757-091","title":"HP 16GB 2666MHz DDR4 PC4-21300 ECC Registered CL19 288-Pin DIMM 1.2V Single Rank x4 Memory Module - 840757-091","description":"\u003ch2 dir=\"ltr\"\u003e\u003cspan\u003eHP 16GB DDR4-2666MHz ECC Registered Server Memory (PC4-21300) Part# 840757-091\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThis HP 16GB DDR4-2666MHz ECC Registered RDIMM, part number 840757-091, is genuine HP memory built for enterprise server upgrades. As part of HP's Smart Memory ProLiant Gen10 lineup, this module is engineered to integrate seamlessly with HP's server platform diagnostics and memory authentication tools.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eSpecification-wise, this is a PC4-21300 RDIMM CL19 Single Rank x4 module operating at 1.2V, delivering fast, stable, error-corrected bandwidth for demanding enterprise workloads like virtualization, cloud services, and data-intensive applications. As a proven HP ProLiant DL360\/DL380 RAM upgrade, it's compatible with several of HP's most widely deployed Gen10 rack and blade servers.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cspan\u003eKey Specifications:\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eBrand: HP\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003ePart Number: 840757-091\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eCapacity: 16GB (single module)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eSpeed: DDR4-2666MHz (PC4-21300)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eType: ECC Registered (RDIMM)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eForm Factor: 288-Pin DIMM\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eRank\/Width: 1Rx4 (Single Rank)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eVoltage: 1.2V\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eCAS Latency: CL19 (19-19-19)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eCondition: Refurbished — tested, cleaned, and verified functional\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cspan\u003eCompatible Systems:\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eDesigned for HPE ProLiant Gen10 servers, including:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eProLiant BL460c Gen10\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eProLiant DL360 Gen10\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eProLiant DL380 Gen10\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eProLiant DL560 Gen10\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eProLiant ML350 Gen10\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eProLiant XL230k Gen10\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eHPE Synergy 480 Gen10 \/ 660 Gen10\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003ePlease confirm exact compatibility with your specific server model and configuration before ordering.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cspan\u003eWhy Choose This Module:\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eECC Protection\u003c\/span\u003e\u003cspan\u003e — automatically detects and corrects single-bit memory errors, keeping your server stable during 24\/7 operation.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eGenuine HP Smart Memory\u003c\/span\u003e\u003cspan\u003e — manufactured to HP's exact specifications for guaranteed fit and performance across supported ProLiant Gen10 systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eRegistered (Buffered) Design\u003c\/span\u003e\u003cspan\u003e — reduces electrical load on the memory controller, supporting stable operation in dense, multi-DIMM configurations.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eRefurbished \u0026amp; Tested\u003c\/span\u003e\u003cspan\u003e — thoroughly cleaned, checked, and tested to perform like new, backed by our 30-day return policy.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cspan\u003eIdeal For:\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eProLiant Gen10 server memory upgrades, virtualization hosts, cloud infrastructure, and enterprise deployments running BL460c, DL360, DL380, DL560, ML350, XL230k, or Synergy platforms.\u003c\/span\u003e\u003c\/p\u003e","brand":"HP","offers":[{"title":"Default Title","offer_id":62810272399731,"sku":"840757-091","price":140.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0992\/9546\/1747\/files\/61.jpg?v=1778004344"},{"product_id":"hp-64gb-2666mhz-ddr4-pc4-21300-ecc-registered-c-840759-091","title":"HP 64GB 2666MHz DDR4 PC4-21300 ECC Registered CL19 288-Pin Load Reduced DIMM 1.2V Quad Rank x4 Memory Module - 840759-091","description":"\u003ch2\u003eHPE 840759-091 64GB DDR4-2666 ECC LRDIMM — 4Rx4 CL19 Server Memory\u003c\/h2\u003e\u003cp\u003eThe HPE 840759-091 is a 64GB DDR4-2666 ECC Load Reduced DIMM providing quad-rank x4 server memory for HPE ProLiant Gen10 servers — delivering CL19 latency at 2666MHz (PC4-21300) with 1.2V operation and LRDIMM load reduction for high-density 64GB per-slot server memory in HPE multi-socket platforms.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e64GB DDR4-2666 ECC LRDIMM — 4Rx4 CL19 for optimal LRDIMM latency at 64GB density\u003c\/li\u003e\n\u003cli\u003eCL19 latency — lowest latency 64GB DDR4-2666 LRDIMM variant for HPE ProLiant Gen10\u003c\/li\u003e\n\u003cli\u003eLRDIMM load reduction enabling quad-rank 64GB per slot without exceeding channel loading limits\u003c\/li\u003e\n\u003cli\u003e1.2V low-voltage operation for energy-efficient high-density server memory\u003c\/li\u003e\n\u003cli\u003eHPE-certified for ProLiant Gen10 LRDIMM platforms\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eProduct Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePart Number: 840759-091\u003c\/li\u003e\n\u003cli\u003eManufacturer: HP \/ HPE\u003c\/li\u003e\n\u003cli\u003eCapacity: 64GB\u003c\/li\u003e\n\u003cli\u003eType: DDR4 ECC Load Reduced DIMM (LRDIMM)\u003c\/li\u003e\n\u003cli\u003eSpeed: 2666MHz (PC4-21300)\u003c\/li\u003e\n\u003cli\u003eCAS Latency: CL19\u003c\/li\u003e\n\u003cli\u003eVoltage: 1.2V\u003c\/li\u003e\n\u003cli\u003eRanks x Width: 4Rx4\u003c\/li\u003e\n\u003cli\u003ePins: 288-Pin\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eMemory Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eECC: Yes — ECC Load Reduced (LRDIMM)\u003c\/li\u003e\n\u003cli\u003eForm Factor: DIMM (288-pin, full-height)\u003c\/li\u003e\n\u003cli\u003eError Correction: SECDED ECC with LRDIMM data buffer\u003c\/li\u003e\n\u003cli\u003eMemory Standard: PC4-21300 (DDR4-2666)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePerformance Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBandwidth: Up to 21,333 MB\/s theoretical peak\u003c\/li\u003e\n\u003cli\u003eECC Type: SECDED with LRDIMM 4-rank data buffer abstraction\u003c\/li\u003e\n\u003cli\u003eRAS Features: ECC, memory mirroring, rank sparing (platform dependent)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eUse Cases\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e64GB CL19 LRDIMM for maximum DDR4-2666 performance at high memory density in HPE Gen10\u003c\/li\u003e\n\u003cli\u003eIn-memory database, SAP HANA, and large virtualization workloads on HPE ProLiant Gen10\u003c\/li\u003e\n\u003cli\u003ePreferred CL19 variant over 850882-001 (CL22) where lowest LRDIMM latency is prioritized\u003c\/li\u003e\n\u003cli\u003eReplacing failed 64GB LRDIMM modules in HPE ProLiant Gen10 deployments\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eHPE ProLiant Gen10 servers supporting DDR4 LRDIMM: DL360, DL380, DL560, DL580 Gen10\u003c\/li\u003e\n\u003cli\u003eRequires LRDIMM-capable DIMM slots — cannot be mixed with RDIMM modules\u003c\/li\u003e\n\u003cli\u003eCL19 variant — preferred over CL22 for latency-sensitive server workloads\u003c\/li\u003e\n\u003cli\u003eVerify HPE memory population guide per server model before installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cdl\u003e\n\u003cdt\u003eWhat is the difference between 840759-091 and 850882-001?\u003c\/dt\u003e\n\u003cdd\u003eBoth are 64GB DDR4-2666 ECC 4Rx4 LRDIMMs for HPE ProLiant Gen10, differing in CAS latency — 840759-091 is CL19 (lower latency, preferred) while 850882-001 is CL22. For latency-sensitive workloads, the CL19 variant (840759-091) is recommended when available.\u003c\/dd\u003e\n\u003cdt\u003eWhat is the difference between 840759-091 and P06182-001?\u003c\/dt\u003e\n\u003cdd\u003eBoth are 64GB DDR4-2666 ECC 4Rx4 CL19 LRDIMMs for HPE ProLiant Gen10 — they are functionally equivalent with identical specifications. The 840759-091 uses the HPE OEM (-091) suffix, while P06182-001 uses the P-series part number format. Both are interchangeable in supported HPE Gen10 servers.\u003c\/dd\u003e\n\u003cdt\u003eDoes the 840759-091 require a specific BIOS version on HPE Gen10 servers?\u003c\/dt\u003e\n\u003cdd\u003eHPE periodically releases BIOS and firmware updates that extend memory compatibility. For 64GB LRDIMM modules, ensure your HPE server is running a recent BIOS version as listed in HPE's memory compatibility advisory for your specific server model and processor combination.\u003c\/dd\u003e\n\u003c\/dl\u003e\u003cp\u003eThe HPE 840759-091 delivers 64GB DDR4-2666 ECC LRDIMM capacity at CL19 latency in a 4Rx4 configuration — providing the preferred low-latency 64GB LRDIMM option for HPE ProLiant Gen10 server platforms requiring high-density DDR4 memory with optimal LRDIMM performance for in-memory database and large-scale virtualization workloads.\u003c\/p\u003e","brand":"HP","offers":[{"title":"Default Title","offer_id":62810272498035,"sku":"840759-091","price":375.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0992\/9546\/1747\/files\/840759-091.webp?v=1778004345"},{"product_id":"samsung-32gb-2400mhz-ddr4-pc4-19200-ecc-m393a4k40bb1-crc4q","title":"Samsung 32GB 2400MHz DDR4 PC4-19200 ECC Registered CL17 288-Pin DIMM 1.2V Dual Rank x4 Memory Module - M393A4K40BB1-CRC4Q","description":"\u003ch2\u003eSamsung 32GB DDR4 2400MHz ECC Registered Server Memory — M393A4K40BB1-CRC4Q\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eSamsung M393A4K40BB1-CRC4Q\u003c\/strong\u003e is a 32GB DDR4 ECC Registered (RDIMM) server memory module operating at 2400MHz (PC4-19200) with CAS latency CL17 and 1.2V operating voltage. A proven workhorse of enterprise server infrastructure, this module delivers reliable memory bandwidth and capacity for a wide range of server workloads including virtualization, databases, and general-purpose computing. Error-Correcting Code (ECC) technology continuously detects and corrects single-bit memory errors in real time, ensuring data integrity in mission-critical environments. The registered (buffered) design reduces electrical load on the memory controller, enabling stable high-density multi-DIMM configurations across enterprise server platforms.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProven DDR4 Reliability:\u003c\/strong\u003e Mature, widely-supported DDR4 platform with broad server compatibility across HPE, Dell, Supermicro, and Lenovo platforms\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eECC Error Protection:\u003c\/strong\u003e Real-time single-bit error correction ensures data integrity for mission-critical server workloads\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRegistered (Buffered) Design:\u003c\/strong\u003e Enables stable, high-density multi-DIMM server configurations without signal degradation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSamsung DRAM:\u003c\/strong\u003e Industry-leading manufacturing quality with proven enterprise-grade reliability and longevity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRoHS Compliant:\u003c\/strong\u003e Meets global environmental and safety standards for enterprise deployments\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e M393A4K40BB1-CRC4Q\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Samsung\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMemory Type:\u003c\/strong\u003e DDR4 SDRAM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModule Type:\u003c\/strong\u003e RDIMM (Registered \/ Buffered)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e 32GB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeed:\u003c\/strong\u003e 2400MHz (PC4-19200)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCAS Latency:\u003c\/strong\u003e CL17\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTiming:\u003c\/strong\u003e 17-17-17\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 1.2V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eForm Factor:\u003c\/strong\u003e 288-Pin DIMM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRank:\u003c\/strong\u003e Dual Rank (2Rx4)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDie Organization:\u003c\/strong\u003e x4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eData Width:\u003c\/strong\u003e 72-bit (64-bit + 8-bit ECC)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eError Correction:\u003c\/strong\u003e SECDED (Single-bit correction, Double-bit detection)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e 0°C to 85°C\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eUse Cases\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVirtualization:\u003c\/strong\u003e VMware vSphere, Microsoft Hyper-V, and KVM deployments on DDR4 server platforms\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDatabase Servers:\u003c\/strong\u003e MySQL, PostgreSQL, Microsoft SQL Server, and Oracle database workloads requiring reliable ECC memory\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGeneral-Purpose Computing:\u003c\/strong\u003e Enterprise application servers, file servers, and web servers requiring stable, high-capacity memory\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLegacy Infrastructure Expansion:\u003c\/strong\u003e Cost-effective memory expansion for existing DDR4 server deployments\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCompatible with DDR4 RDIMM slots only — not compatible with DDR5 platforms\u003c\/li\u003e\n\u003cli\u003eCRC4Q suffix denotes specific OEM or regional server vendor qualification — verify against your server's memory QVL before ordering\u003c\/li\u003e\n\u003cli\u003eDo not mix with DDR4 UDIMMs or LRDIMMs in the same system\u003c\/li\u003e\n\u003cli\u003eFor multi-DIMM stability, populate channels with matched capacity, speed, and rank modules\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cdl\u003e\n\u003cdt\u003e\u003cstrong\u003eIs this module compatible with DDR5 servers?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eNo — DDR4 and DDR5 are not interchangeable. 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It runs at 2933MHz on the PC4-23400 standard. This module has an ECC Registered design with a single-rank, x8 layout. It uses a standard 288-pin form factor at 1.2V.\u003c\/p\u003e\n\u003cp\u003eECC Registered memory checks itself while the server runs. It catches small errors early and stops them before they cause a crash or lost data. This kind of protection matters most on servers that stay busy around the clock. 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Many DL360, DL380, and ML350 Gen10 models use this exact type. Always check your exact model's supported memory list first. HP part numbers are qualified specifically for HP platforms.\u003c\/p\u003e\n\u003ch2\u003eIs This Module New or Refurbished?\u003c\/h2\u003e\n\u003cp\u003eThis module is refurbished, not new. Each one is cleaned and tested first. This confirms it works before it gets listed. The chips are HP-qualified, not a generic substitute. A 30-day warranty covers every order.\u003c\/p\u003e\n\u003ch2\u003eBest Uses for This Memory Module\u003c\/h2\u003e\n\u003cp\u003eThis module suits a ProLiant server that needs more memory for virtualization or database work. It also replaces a failed 8GB stick with a matched, genuine HP part. Standardizing a fleet of ProLiant servers on HP-qualified memory keeps configurations predictable.\u003c\/p\u003e\n\u003ch2\u003eCommon Questions\u003c\/h2\u003e\n\u003ch3\u003eDoes this module work in a Dell or Lenovo server?\u003c\/h3\u003e\n\u003cp\u003eHP part numbers are qualified specifically for HP ProLiant platforms. 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DDR4 RDIMMs require DDR4-compatible server platforms. Always verify your server's memory type requirement before ordering.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eWhat does the CTD6Y qualification suffix indicate?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eSamsung uses qualification suffixes to denote OEM validation, regional certification, or specific server vendor testing. CTD6Y identifies this module's exact qualification tier — always cross-reference with your server vendor's memory compatibility or QVL list before purchase.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eCan this module run at 2400MHz or 2133MHz if my server does not support 2666MHz?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eDDR4 modules are backward speed-compatible — if your server platform does not support 2666MHz, the module will train down to the platform's maximum supported speed (e.g., 2400MHz or 2133MHz). 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A proven workhorse of enterprise server infrastructure, this module delivers reliable memory bandwidth and capacity for a wide range of server workloads including virtualization, databases, and general-purpose computing. Error-Correcting Code (ECC) technology continuously detects and corrects single-bit memory errors in real time, ensuring data integrity in mission-critical environments. 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DDR4 RDIMMs require DDR4-compatible server platforms. Always verify your server's memory type requirement before ordering.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eWhat does the CTD6Q qualification suffix indicate?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eSamsung uses qualification suffixes to denote OEM validation, regional certification, or specific server vendor testing. CTD6Q identifies this module's exact qualification tier — always cross-reference with your server vendor's memory compatibility or QVL list before purchase.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eCan this module run at 2133MHz or 2400MHz if my server does not support 2666MHz?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eDDR4 modules are backward speed-compatible — if your server platform does not support 2666MHz, the module will train down to the platform's maximum supported speed (e.g., 2400MHz or 2133MHz). Always verify with your server vendor's QVL to confirm supported configurations.\u003c\/dd\u003e\n\u003c\/dl\u003e\u003cp\u003eWhether you are expanding memory in an existing DDR4 server infrastructure, deploying new virtualization hosts, or scaling database server capacity, the Samsung M393A4K40BB2-CTD6Q delivers the proven DDR4 reliability, ECC protection, and Samsung manufacturing quality your enterprise server environment demands.\u003c\/p\u003e","brand":"Samsung","offers":[{"title":"Default Title","offer_id":62810273153395,"sku":"M393A4K40BB2-CTD6Q","price":275.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0992\/9546\/1747\/files\/dm_gen_memory_3_12_1.jpg?v=1778004378"},{"product_id":"dell-16gb-2133mhz-ddr4-pc4-17000-ecc-registered-cl15-1r8cr","title":"Dell 16GB 2133MHz DDR4 PC4-17000 ECC Registered CL15 288-Pin DIMM 1.2V Dual Rank x4 Memory Module - 1R8CR","description":"\u003cp\u003eDell 16GB 2133MHz DDR4 PC4-17000 ECC Registered CL15 288-Pin DIMM 1.2V Dual Rank x4 Memory Module - 1R8CR\u003c\/p\u003e","brand":"Dell","offers":[{"title":"Default Title","offer_id":62810273218931,"sku":"1R8CR","price":115.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0992\/9546\/1747\/files\/dm_1r8cr_1_1.jpg?v=1778004382"},{"product_id":"samsung-32gb-2666mhz-ddr4-pc4-21300-ecc-r-m393a4k40bb2-ctd","title":"Samsung 32GB 2666MHz DDR4 PC4-21300 ECC Registered CL19 288-Pin DIMM 1.2V Dual Rank x4 Memory Module - M393A4K40BB2-CTD","description":"\u003ch2\u003eSamsung 32GB DDR4 2666MHz ECC Registered Server Memory — M393A4K40BB2-CTD\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eSamsung M393A4K40BB2-CTD\u003c\/strong\u003e is a 32GB DDR4 ECC Registered (RDIMM) server memory module operating at 2666MHz (PC4-21300) with CAS latency CL19 and 1.2V operating voltage. A proven workhorse of enterprise server infrastructure, this module delivers reliable memory bandwidth and capacity for a wide range of server workloads including virtualization, databases, and general-purpose computing. Error-Correcting Code (ECC) technology continuously detects and corrects single-bit memory errors in real time, ensuring data integrity in mission-critical environments. The registered (buffered) design reduces electrical load on the memory controller, enabling stable high-density multi-DIMM configurations across enterprise server platforms.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProven DDR4 Reliability:\u003c\/strong\u003e Mature, widely-supported DDR4 platform with broad server compatibility across HPE, Dell, Supermicro, and Lenovo platforms\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eECC Error Protection:\u003c\/strong\u003e Real-time single-bit error correction ensures data integrity for mission-critical server workloads\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRegistered (Buffered) Design:\u003c\/strong\u003e Enables stable, high-density multi-DIMM server configurations without signal degradation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSamsung DRAM:\u003c\/strong\u003e Industry-leading manufacturing quality with proven enterprise-grade reliability and longevity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRoHS Compliant:\u003c\/strong\u003e Meets global environmental and safety standards for enterprise deployments\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e M393A4K40BB2-CTD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Samsung\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMemory Type:\u003c\/strong\u003e DDR4 SDRAM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModule Type:\u003c\/strong\u003e RDIMM (Registered \/ Buffered)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e 32GB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeed:\u003c\/strong\u003e 2666MHz (PC4-21300)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCAS Latency:\u003c\/strong\u003e CL19\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTiming:\u003c\/strong\u003e 19-19-19\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 1.2V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eForm Factor:\u003c\/strong\u003e 288-Pin DIMM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRank:\u003c\/strong\u003e Dual Rank (2Rx4)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDie Organization:\u003c\/strong\u003e x4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eData Width:\u003c\/strong\u003e 72-bit (64-bit + 8-bit ECC)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eError Correction:\u003c\/strong\u003e SECDED (Single-bit correction, Double-bit detection)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e 0°C to 85°C\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eUse Cases\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVirtualization:\u003c\/strong\u003e VMware vSphere, Microsoft Hyper-V, and KVM deployments on DDR4 server platforms\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDatabase Servers:\u003c\/strong\u003e MySQL, PostgreSQL, Microsoft SQL Server, and Oracle database workloads requiring reliable ECC memory\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGeneral-Purpose Computing:\u003c\/strong\u003e Enterprise application servers, file servers, and web servers requiring stable, high-capacity memory\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLegacy Infrastructure Expansion:\u003c\/strong\u003e Cost-effective memory expansion for existing DDR4 server deployments\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCompatible with DDR4 RDIMM slots only — not compatible with DDR5 platforms\u003c\/li\u003e\n\u003cli\u003eCTD is the base qualification code for this Samsung 32GB DDR4 2666MHz x4 RDIMM series — verify against your server's memory QVL before ordering\u003c\/li\u003e\n\u003cli\u003eDo not mix with DDR4 UDIMMs or LRDIMMs in the same system\u003c\/li\u003e\n\u003cli\u003eFor multi-DIMM stability, populate channels with matched capacity, speed, and rank modules\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cdl\u003e\n\u003cdt\u003e\u003cstrong\u003eIs this module compatible with DDR5 servers?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eNo — DDR4 and DDR5 are not interchangeable. DDR4 RDIMMs require DDR4-compatible server platforms. Always verify your server's memory type requirement before ordering.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eWhat does the CTD qualification code indicate?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eCTD is Samsung's base qualification code for this DDR4 2666MHz RDIMM series. Variants with extended suffixes (CTD7Q, CTD7Y, CTD8Q, CTD6Q) represent specific OEM or regional qualifications — always verify against your server vendor's QVL before purchase.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eCan this module run at 2133MHz or 2400MHz if my server does not support 2666MHz?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eDDR4 modules are backward speed-compatible — if your server platform does not support 2666MHz, the module will train down to the platform's maximum supported speed (e.g., 2400MHz or 2133MHz). 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This exact Samsung listing specifies a 64GB DDR4-3200 ECC Registered module with PC4-25600 data rate, CL22 timing, dual-rank x4 organization, a 288-pin DIMM form factor, and 1.2V operation. 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Compare the exact module to the platform's supported-memory list before ordering; matching only the 64GB figure is not enough for a dependable upgrade.\u003c\/p\u003e","brand":"Samsung","offers":[{"title":"Default Title","offer_id":62810273382771,"sku":"M393A8G40AB2-CWE","price":795.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0992\/9546\/1747\/files\/M393A8G40AB2-CWE-1.jpg?v=1778004390"},{"product_id":"samsung-16gb-1600mhz-ddr3-pc3-12800-ecc-r-m393b2g70eb0-yk0","title":"Samsung 16GB 1600MHz DDR3 PC3-12800 ECC Registered CL11 240-Pin DIMM 1.35V (LV) Dual Rank x4 Memory Module - M393B2G70EB0-YK0","description":"\u003cp\u003eSamsung 16GB 1600MHz DDR3 PC3-12800 ECC Registered CL11 240-Pin DIMM 1.35V (LV) Dual Rank x4 Memory Module - M393B2G70EB0-YK0\u003c\/p\u003e","brand":"Samsung","offers":[{"title":"Default Title","offer_id":62810273415539,"sku":"M393B2G70EB0-YK0","price":63.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0992\/9546\/1747\/files\/m393b2g70eb0-yk0.jpg?v=1778004392"},{"product_id":"samsung-8gb-2133mhz-ddr4-pc4-17000-ecc-re-m393a1g43db0-cpb","title":"Samsung 8GB 2133MHz DDR4 PC4-17000 ECC Registered CL15 288-Pin DIMM 1.2V Dual Rank x8 Memory Module - M393A1G43DB0-CPB","description":"\u003cp\u003eSamsung 8GB 2133MHz DDR4 PC4-17000 ECC Registered CL15 288-Pin DIMM 1.2V Dual Rank x8 Memory Module - M393A1G43DB0-CPB\u003c\/p\u003e","brand":"Samsung","offers":[{"title":"Default Title","offer_id":62810273448307,"sku":"M393A1G43DB0-CPB","price":70.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0992\/9546\/1747\/files\/m393a1g43db0-cpb.jpg?v=1778004394"},{"product_id":"samsung-8gb-1333mhz-ddr3-pc3-10600-ecc-re-m393b1k70ch0-ch9","title":"Samsung 8GB 1333MHz DDR3 PC3-10600 ECC Registered CL9 240-Pin DIMM 1.35V (LV) Dual Rank x4 Memory Module - M393B1K70CH0-CH9","description":"\u003cp\u003eSamsung 8GB 1333MHz DDR3 PC3-10600 ECC Registered CL9 240-Pin DIMM 1.35V (LV) Dual Rank x4 Memory Module - M393B1K70CH0-CH9\u003c\/p\u003e","brand":"Samsung","offers":[{"title":"Default Title","offer_id":62810273481075,"sku":"M393B1K70CH0-CH9","price":58.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0992\/9546\/1747\/files\/m393b1k70ch0-ch9.jpg?v=1778004396"},{"product_id":"samsung-128gb-2666mhz-ddr4-pc4-21300-ecc-m393aak40b42-cwd","title":"Samsung 128GB 2666MHz DDR4 PC4-21300 ECC Registered CL19 288-Pin DIMM 1.2V Octal Rank x4 Memory Module - M393AAK40B42-CWD","description":"\u003ch2\u003eWhat Is the Samsung M393AAK40B42-CWD 128GB DDR4-2666 LRDIMM?\u003c\/h2\u003e\n\u003cp\u003eThe Samsung M393AAK40B42-CWD is a genuine 128GB DDR4 server memory module. It runs at 2666MHz. It follows the PC4-21300 standard. It uses ECC Load Reduced design. The layout is octal-rank, x4. It uses a 288-pin form factor at 1.2V.\u003c\/p\u003e\n\u003cp\u003eOctal-rank LRDIMM packs eight ranks onto one module. It uses a data buffer chip. This was one of the earliest ways to reach 128GB per module. Newer 3DS die-stacking came later. The module carries a CL19 latency rating.\u003c\/p\u003e\n\u003ch2\u003eSamsung M393AAK40B42-CWD Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBrand: Samsung\u003c\/li\u003e\n\u003cli\u003ePart Number: M393AAK40B42-CWD\u003c\/li\u003e\n\u003cli\u003eCapacity: 128GB\u003c\/li\u003e\n\u003cli\u003eSpeed: 2666MHz (PC4-21300)\u003c\/li\u003e\n\u003cli\u003eMemory Type: DDR4 ECC Load Reduced (LRDIMM)\u003c\/li\u003e\n\u003cli\u003eCAS Latency: CL19\u003c\/li\u003e\n\u003cli\u003eRank and Width: Octal-Rank, x4\u003c\/li\u003e\n\u003cli\u003eVoltage: 1.2V\u003c\/li\u003e\n\u003cli\u003ePin Count: 288\u003c\/li\u003e\n\u003cli\u003eForm Factor: Standard Height LRDIMM\u003c\/li\u003e\n\u003cli\u003eCondition: Refurbished, tested, and verified functional\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhich Servers Use This Module?\u003c\/h2\u003e\n\u003cp\u003eThis module fits enterprise servers built for high-density DDR4-2666 memory. Many Dell, HP, and Lenovo models support octal-rank LRDIMM. Always check your exact model's memory list first. Octal-rank support is less common than quad-rank.\u003c\/p\u003e\n\u003ch2\u003eIs This Module New or Refurbished?\u003c\/h2\u003e\n\u003cp\u003eThis module is refurbished, not new. Each one is cleaned and tested. This confirms it works before it gets listed. The chips are genuine Samsung dies. A 30-day warranty covers every order.\u003c\/p\u003e\n\u003ch2\u003eBest Uses for This Memory Module\u003c\/h2\u003e\n\u003cp\u003eThis module suits an older server with top density needs. Large in-memory databases and busy hosts benefit most. It also replaces a failed octal-rank module with a matched part.\u003c\/p\u003e\n\u003ch2\u003eCommon Questions\u003c\/h2\u003e\n\u003ch3\u003eIs octal-rank memory harder to find than quad-rank?\u003c\/h3\u003e\n\u003cp\u003eYes. Fewer platforms support octal-rank. Check your server's memory documentation before ordering a replacement.\u003c\/p\u003e\n\u003ch3\u003eDoes octal-rank memory run slower than quad-rank at the same speed?\u003c\/h3\u003e\n\u003cp\u003eNo. Rank count affects addressing and density, not speed. 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Confirm the exact module technology and your server's supported memory population rules before ordering, as the current listing uses conflicting terms for its buffering design.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eHigh capacity per memory slot\u003c\/li\u003e\n\u003cli\u003eECC memory for a supported server platform\u003c\/li\u003e\n\u003cli\u003eQuad-rank organization\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eProduct Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBrand: Samsung\u003c\/li\u003e\n\u003cli\u003eCapacity: 128GB\u003c\/li\u003e\n\u003cli\u003eMemory Generation: DDR4\u003c\/li\u003e\n\u003cli\u003eData Rate: 2933MT\/s\u003c\/li\u003e\n\u003cli\u003eSpeed Rating: PC4-23400\u003c\/li\u003e\n\u003cli\u003eError Correction: ECC\u003c\/li\u003e\n\u003cli\u003eCAS Latency: CL21\u003c\/li\u003e\n\u003cli\u003eRank Organization: Quad rank x4\u003c\/li\u003e\n\u003cli\u003eForm Factor: 288-pin DIMM\u003c\/li\u003e\n\u003cli\u003eOperating Voltage: 1.2V\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eUse Cases\u003c\/h3\u003e\u003cp\u003eConsider it for capacity-focused virtualization or memory-intensive server applications when the exact module is approved for the host system.\u003c\/p\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eCheck the server's qualified memory list, supported 128GB module type, speed, and slot population rules. Do not mix module technologies without explicit platform support.\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cdl\u003e\n\u003cdt\u003eWill it fit a desktop DDR4 slot?\u003c\/dt\u003e\n\u003cdd\u003ePhysical pin count alone does not establish compatibility; this listing describes ECC server memory.\u003c\/dd\u003e\n\u003cdt\u003eIs its buffering type confirmed?\u003c\/dt\u003e\n\u003cdd\u003eNo. The current product title and description disagree, so that detail needs verification.\u003c\/dd\u003e\n\u003c\/dl\u003e\u003cp\u003eHigh-density memory can deliver a meaningful capacity increase, but only when its electrical design matches the platform. 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Its 1.35V low-voltage design helps reduce power draw across densely populated memory configurations.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e16GB capacity for server and workstation workloads\u003c\/li\u003e\n\u003cli\u003eECC registered design for error detection and correction\u003c\/li\u003e\n\u003cli\u003e1.35V low-voltage operation for reduced power draw\u003c\/li\u003e\n\u003cli\u003eDual rank configuration for improved memory access efficiency\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eProduct Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e HMT42GR7AFR4A-PB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Hynix\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e 16GB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMemory Type:\u003c\/strong\u003e DDR3 PC3-12800\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeed:\u003c\/strong\u003e 1600MHz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCAS Latency:\u003c\/strong\u003e CL11\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eForm Factor:\u003c\/strong\u003e 240-pin DIMM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 1.35V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eECC:\u003c\/strong\u003e Registered ECC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRank Configuration:\u003c\/strong\u003e Dual rank\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eUse Cases\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eServer memory upgrades needing error-correcting capacity\u003c\/li\u003e\n\u003cli\u003eWorkstation builds requiring registered ECC memory\u003c\/li\u003e\n\u003cli\u003eData integrity-sensitive workloads and virtualization hosts\u003c\/li\u003e\n\u003cli\u003eDensely populated memory configurations benefiting from low voltage\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eCompatible with servers and workstations supporting 240-pin DDR3 registered ECC memory at 1600MHz.\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cdl\u003e\n\u003cdt\u003eWhat does ECC registered memory add over standard memory?\u003c\/dt\u003e\n\u003cdd\u003eIt detects and corrects memory errors, which matters for servers and workstations running critical or long-duration workloads.\u003c\/dd\u003e\n\u003cdt\u003eWhat voltage does this module run at?\u003c\/dt\u003e\n\u003cdd\u003e1.35V, a lower-voltage DDR3 configuration.\u003c\/dd\u003e\n\u003c\/dl\u003e\u003cp\u003eFor server and workstation builds needing reliable, error-correcting memory capacity, this Hynix module delivers 16GB with the ECC protection critical workloads depend on.\u003c\/p\u003e","brand":"Hynix","offers":[{"title":"Default Title","offer_id":62810273841523,"sku":"HMT42GR7AFR4A-PB","price":59.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0992\/9546\/1747\/files\/hmt42gr7afr4a-pb.jpg?v=1778004413"},{"product_id":"hynix-16gb-2400mhz-ddr4-pc4-19200-ecc-reg-hma82gr7mfr4n-uh","title":"Hynix 16GB 2400MHz DDR4 PC4-19200 ECC Registered CL17 288-Pin DIMM 1.2V Single Rank x4 Memory Module - 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It runs at 2933MHz on the PC4-23400 standard. This module has an ECC Registered design with a single-rank, x8 layout. It uses a standard 288-pin form factor at 1.2V.\u003c\/p\u003e\n\u003cp\u003eECC Registered memory checks itself while the server runs. It catches small errors early and stops them before they cause a crash or lost data. The module carries a CL21 latency rating for steady performance at this speed, and it runs on standard 1.2V power.\u003c\/p\u003e\n\u003ch2\u003eSamsung M393A1K43DB1-CVF Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBrand: Samsung\u003c\/li\u003e\n\u003cli\u003ePart Number: M393A1K43DB1-CVF\u003c\/li\u003e\n\u003cli\u003eCapacity: 8GB\u003c\/li\u003e\n\u003cli\u003eSpeed: 2933MHz (PC4-23400)\u003c\/li\u003e\n\u003cli\u003eMemory Type: DDR4 ECC Registered (RDIMM)\u003c\/li\u003e\n\u003cli\u003eCAS Latency: CL21\u003c\/li\u003e\n\u003cli\u003eRank and Width: Single-Rank, x8\u003c\/li\u003e\n\u003cli\u003eVoltage: 1.2V\u003c\/li\u003e\n\u003cli\u003ePin Count: 288\u003c\/li\u003e\n\u003cli\u003eForm Factor: Standard Height RDIMM\u003c\/li\u003e\n\u003cli\u003eCondition: Refurbished, tested, and verified functional\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhich Servers Use This Module?\u003c\/h2\u003e\n\u003cp\u003eThis module fits enterprise servers built for DDR4-2933 registered memory. Many Dell PowerEdge, HP ProLiant, and Lenovo ThinkSystem models from this generation use this exact type. Intel Xeon Scalable and AMD EPYC platforms commonly support this speed. Always check your exact model's supported memory list first.\u003c\/p\u003e\n\u003ch2\u003eIs This Module New or Refurbished?\u003c\/h2\u003e\n\u003cp\u003eThis module is refurbished, not new. Each one is cleaned and tested first. This confirms it works before it gets listed. The chips are genuine Samsung dies, not a generic copy. A 30-day warranty covers every order.\u003c\/p\u003e\n\u003ch2\u003eBest Uses for This Memory Module\u003c\/h2\u003e\n\u003cp\u003eThis module suits a server that needs more memory for virtualization or database work. It also replaces a failed 8GB stick with a matched, tested part. Since Samsung memory is not vendor-locked, it works well when standardizing across a mixed fleet of server brands.\u003c\/p\u003e\n\u003ch2\u003eCommon Questions\u003c\/h2\u003e\n\u003ch3\u003eIs this compatible with any server brand?\u003c\/h3\u003e\n\u003cp\u003eMost servers built for DDR4-2933 ECC Registered memory accept this module, regardless of brand. Check your system's QVL to confirm before ordering.\u003c\/p\u003e\n\u003ch3\u003eWhat is the difference between x8 and x4 die organization?\u003c\/h3\u003e\n\u003cp\u003ex8 uses fewer, wider chips per module, while x4 uses more, narrower chips. 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