SK Hynix 64GB 4800MHz DDR5 PC5-38400 ECC Registered CL40 288-Pin DIMM 1.1V Dual Rank x4 Memory Module – HMCG94AEBRA109N

SK Hynix 64GB DDR5-4800MHz PC5-38400 ECC Registered CL40 288-Pin DIMM 1.1V Dual Rank x4 Memory Module — HMCG94AEBRA109N

The SK Hynix HMCG94AEBRA109N is a 64GB DDR5-4800MHz ECC Registered (RDIMM) server memory module operating at 1.1V with CL40 latency. Featuring a 288-pin DDR5 interface and Dual Rank x4 (2Rx4) configuration, it delivers high-capacity enterprise-grade ECC error correction for Intel Xeon Scalable (Sapphire Rapids) and AMD EPYC (Genoa) server platforms. HMCG94AEBRA109N is a production variant of the SK Hynix 64GB DDR5-4800 2Rx4 RDIMM family.

Key Features

• 64GB DDR5-4800MHz ECC Registered DIMM for next-generation enterprise servers
• DDR5-4800MHz (PC5-38400) for high-bandwidth DDR5 server memory performance
• Registered DIMM (RDIMM) for stability in multi-DIMM DDR5 server configurations
• Dual Rank x4 (2Rx4) configuration for high-density memory deployment
• 1.1V operation — lower voltage than DDR4 for improved energy efficiency
• 288-pin DDR5 interface — next-generation server memory form factor

Product Specifications

• Part Number: HMCG94AEBRA109N
• Manufacturer: SK Hynix
• OEM Status: Genuine SK Hynix OEM
• Capacity: 64GB
• Type: DDR5 ECC Registered DIMM (RDIMM)
• Speed: 4800MHz (PC5-38400)
• CAS Latency: CL40
• Voltage: 1.1V
• Rank / Organization: Dual Rank x4 (2Rx4)
• Pins: 288-Pin
• ECC: Yes

Memory Specifications

• Capacity: 64GB
• DIMM Type: Registered ECC (RDIMM)
• DDR Generation: DDR5
• Pin Count: 288-Pin
• Rank: Dual Rank (2Rx4)
• Voltage: 1.1V
• ECC: Yes (Error-Correcting Code)
• On-Die ECC: Yes (DDR5 native)

Performance Specifications

• Speed: DDR5-4800MHz
• Bandwidth: PC5-38400
• CAS Latency: CL40
• XMP / JEDEC: JEDEC standard

Use Cases

• High-capacity enterprise server memory for Intel Xeon Scalable (Sapphire Rapids) platforms
• AMD EPYC (Genoa) server memory requiring DDR5-4800 RDIMM
• Virtualization hosts requiring high-bandwidth DDR5 RDIMM memory
• Database and in-memory analytics requiring DDR5 bandwidth

Compatibility

• Compatible with servers supporting DDR5-4800 ECC Registered (RDIMM) memory
• Compatible with Intel Xeon Scalable (Sapphire Rapids) and AMD EPYC (Genoa) platforms
• Functionally equivalent to HMCG94AEBRA123N and HMCG94MEBRA112N variants
• Not compatible with DDR4 systems — DDR5 requires DDR5-capable platforms
• Verify server QVL (Qualified Vendor List) before ordering

Frequently Asked Questions

What is the difference between HMCG94AEBRA109N and HMCG94AEBRA123N?

Both are SK Hynix 64GB DDR5-4800 ECC RDIMM 2Rx4 modules with identical specifications. 109N and 123N are specific production revision suffixes — they are functionally equivalent.

Is HMCG94AEBRA109N compatible with Intel Xeon Sapphire Rapids?

Yes, it is compatible with Intel Xeon Scalable Sapphire Rapids server platforms supporting DDR5-4800 ECC RDIMM. Verify your specific server”s QVL before ordering.

Is DDR5 backward compatible with DDR4 slots?

No, DDR5 is not backward compatible with DDR4. DDR5 RDIMMs require DDR5-capable server platforms and cannot be installed in DDR4 memory slots.

The SK Hynix HMCG94AEBRA109N 64GB DDR5-4800 ECC Registered DIMM delivers next-generation server memory performance. Order today for genuine SK Hynix DDR5 RDIMM quality.