SK Hynix 32GB DDR4-2666MHz PC4-21300 ECC Registered CL19 288-Pin DIMM 1.2V Dual Rank x4 Memory Module — HMA84GR7AFR4N-VK

The SK Hynix HMA84GR7AFR4N-VK is a 32GB DDR4-2666MHz ECC Registered (RDIMM) server memory module operating at 1.2V with CL19 latency. Featuring a 288-pin interface and Dual Rank x4 configuration with AFR NAND die, it delivers enterprise-grade ECC error correction for Intel Xeon Scalable (Skylake/Cascade Lake) and AMD EPYC server platforms requiring DDR4-2666 registered memory. HMA84GR7AFR4N-VK is the base part number of this SK Hynix 32GB DDR4-2666 AFR RDIMM family.

Key Features

• 32GB DDR4-2666MHz ECC Registered DIMM for enterprise servers
• DDR4-2666MHz (PC4-21300) for high-bandwidth server memory performance
• Registered DIMM (RDIMM) for stability in multi-DIMM server configurations
• Dual Rank x4 (2Rx4) configuration for high-density memory deployment
• AFR NAND die — SK Hynix AFR generation memory die
• 1.2V low-voltage operation for energy-efficient server operation

Product Specifications

• Part Number: HMA84GR7AFR4N-VK
• Manufacturer: SK Hynix
• OEM Status: Genuine SK Hynix OEM
• Capacity: 32GB
• Type: DDR4 ECC Registered DIMM (RDIMM)
• Speed: 2666MHz (PC4-21300)
• CAS Latency: CL19
• Voltage: 1.2V
• Rank / Organization: Dual Rank x4 (2Rx4)
• Pins: 288-Pin
• ECC: Yes

Memory Specifications

• Capacity: 32GB
• DIMM Type: Registered ECC (RDIMM)
• DDR Generation: DDR4
• Pin Count: 288-Pin
• Rank: Dual Rank (2Rx4)
• Voltage: 1.2V
• ECC: Yes (Error-Correcting Code)
• Die Type: AFR

Performance Specifications

• Speed: DDR4-2666MHz
• Bandwidth: PC4-21300
• CAS Latency: CL19
• XMP / JEDEC: JEDEC standard

Use Cases

• Enterprise server memory for Intel Xeon Scalable (Skylake/Cascade Lake) platforms
• AMD EPYC server memory requiring DDR4-2666 RDIMM
• Virtualization hosts requiring DDR4-2666 RDIMM memory
• Database and in-memory computing workloads

Compatibility

• Compatible with servers supporting DDR4-2666 ECC Registered (RDIMM) memory
• Compatible with Intel Xeon Scalable (Skylake, Cascade Lake) and AMD EPYC platforms
• Functionally equivalent to HMA84GR7AFR4N-VKTD, VKTF, and VKTN variants
• Verify server QVL (Qualified Vendor List) before ordering

Frequently Asked Questions

What is the difference between HMA84GR7AFR4N-VK, VKTD, VKTF, and VKTN?

All are SK Hynix 32GB DDR4-2666 ECC RDIMM 2Rx4 AFR die modules with identical specifications. VK is the base part number while VKTD, VKTF, and VKTN are specific production revision suffixes — they are functionally equivalent.

What is the difference between HMA84GR7AFR4N (DDR4-2666) and HMA84GR7AFR4N-UH (DDR4-2400)?

VK suffix variants run at DDR4-2666MHz (PC4-21300) while UH suffix variants run at DDR4-2400MHz (PC4-19200) — they are different speed grades of the same 32GB 2Rx4 AFR RDIMM family.

Is this module compatible with Intel Xeon Skylake processors?

Yes, it is compatible with Intel Xeon Scalable Skylake and Cascade Lake server platforms supporting DDR4-2666 ECC RDIMM. Verify your specific server's QVL before ordering.

The SK Hynix HMA84GR7AFR4N-VK 32GB DDR4-2666 ECC Registered DIMM delivers reliable, enterprise-grade server memory performance. Order today for genuine SK Hynix RDIMM quality with proven ECC reliability.