SK Hynix 16GB DDR4-2933MHz PC4-23400 ECC Registered CL21 288-Pin DIMM 1.2V Dual Rank x8 Memory Module — HMA82GR7CJR8N-WM

The SK Hynix HMA82GR7CJR8N-WM is a 16GB DDR4-2933MHz ECC Registered (RDIMM) server memory module operating at 1.2V with CL21 latency. Featuring a 288-pin interface and Dual Rank x8 (2Rx8) configuration with CJR NAND die, it delivers enterprise-grade ECC error correction for Intel Xeon Scalable (Cascade Lake) and AMD EPYC server platforms requiring DDR4-2933 registered memory. HMA82GR7CJR8N-WM is the base part number of this SK Hynix 16GB DDR4-2933 2Rx8 RDIMM family.

Key Features

• 16GB DDR4-2933MHz ECC Registered DIMM for enterprise servers
• DDR4-2933MHz (PC4-23400) for high-bandwidth server memory performance
• Registered DIMM (RDIMM) for stability in multi-DIMM server configurations
• Dual Rank x8 (2Rx8) configuration
• 1.2V low-voltage operation for energy-efficient server operation
• 288-pin interface — standard DDR4 RDIMM form factor

Product Specifications

• Part Number: HMA82GR7CJR8N-WM
• Manufacturer: SK Hynix
• OEM Status: Genuine SK Hynix OEM
• Capacity: 16GB
• Type: DDR4 ECC Registered DIMM (RDIMM)
• Speed: 2933MHz (PC4-23400)
• CAS Latency: CL21
• Voltage: 1.2V
• Rank / Organization: Dual Rank x8 (2Rx8)
• Pins: 288-Pin
• ECC: Yes

Memory Specifications

• Capacity: 16GB
• DIMM Type: Registered ECC (RDIMM)
• DDR Generation: DDR4
• Pin Count: 288-Pin
• Rank: Dual Rank (2Rx8)
• Voltage: 1.2V
• ECC: Yes (Error-Correcting Code)
• Register Buffer: Yes

Performance Specifications

• Speed: DDR4-2933MHz
• Bandwidth: PC4-23400
• CAS Latency: CL21
• XMP / JEDEC: JEDEC standard

Use Cases

• Enterprise server memory for Intel Xeon Scalable (Cascade Lake) platforms
• AMD EPYC server memory requiring DDR4-2933 RDIMM
• Virtualization hosts requiring DDR4-2933 RDIMM memory
• Database and transactional workload server memory

Compatibility

• Compatible with servers supporting DDR4-2933 ECC Registered (RDIMM) memory
• Compatible with Intel Xeon Scalable (Cascade Lake) and AMD EPYC platforms
• Functionally equivalent to HMA82GR7CJR8N-WMTG variant
• Verify server QVL (Qualified Vendor List) before ordering

Frequently Asked Questions

What is the difference between HMA82GR7CJR8N-WM and HMA82GR7CJR8N-WMTG?

Both are SK Hynix 16GB DDR4-2933 ECC RDIMM 2Rx8 modules with identical specifications. WM is the base part number while WMTG is a specific production revision suffix — they are functionally equivalent.

What is the difference between HMA82GR7CJR8N-WM (DDR4-2933) and HMA82GR7CJR8N-VK (DDR4-2666)?

WM suffix variants run at DDR4-2933MHz (PC4-23400) while VK suffix variants run at DDR4-2666MHz (PC4-21300) — they are different speed grades of the same 16GB 2Rx8 RDIMM family.

Is this module compatible with Intel Xeon Cascade Lake processors?

Yes, it is compatible with Intel Xeon Scalable Cascade Lake server platforms supporting DDR4-2933 ECC RDIMM. Verify your specific server's QVL before ordering.

The SK Hynix HMA82GR7CJR8N-WM 16GB DDR4-2933 ECC Registered DIMM delivers reliable, enterprise-grade server memory performance. Order today for genuine SK Hynix RDIMM quality with proven ECC reliability.