SK Hynix DDR5 64GB 6400 MT/s RDIMM
Brand: SK Hynix | Category: Memory (RAM)
SKU: HMAA8GR7AJR4N-WM | Part #: HMAA8GR7AJR4N-WM | MPN: HMAA8GR7AJR4N-WM
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About the SK Hynix DDR5 64GB 6400 MT/s RDIMM
SK Hynix DDR5 64GB 6400 MT/s RDIMM (HMAA8GR7AJR4N-WM) is engineered for Intel 4th Gen Xeon Scalable (Sapphire Rapids) and AMD EPYC 9004 (Genoa) platforms, delivering enterprise-grade memory performance across dual-rank, x4 device architecture. This registered DIMM operates at 3200 MHz effective frequency with 6400 MT/s throughput, combining SK Hynix's proven DDR5 technology with on-die error correction (ODECC) and registered command/address bus protection for mission-critical server deployments.
Built to JEDEC DDR5 specifications, the HMAA8GR7AJR4N-WM features an integrated on-DIMM PMIC, 1.1V operating voltage, and CAS latency of 46 (46-45-45 primary timings), ensuring compatibility with next-generation data center architectures. SK Hynix memory modules are trusted by storage architects and IT procurement teams for their reliability across high-availability infrastructure. The standard 31.25 mm form factor and commercial-grade temperature tolerance (0–85°C) support dense server configurations without thermal complications.
Enterprise Deployment Scenarios
- Virtualization platforms requiring high-density memory with ECC protection and minimal latency variance across workload spikes
- Database and analytics workloads where dual-rank configuration and registered DIMM stability reduce silent data corruption risk
- High-performance computing (HPC) and AI infrastructure demanding consistent 6400 MT/s throughput for model training and inference
- Multi-tenant cloud environments where on-die ECC and registered bus integrity support SLA compliance and tenant isolation
- Legacy-to-modern server migrations leveraging Sapphire Rapids or Genoa architecture with DDR5-native performance gains
Contact Omnixon Global to request a detailed quote for SK Hynix DDR5 memory solutions tailored to your infrastructure roadmap.
Technical Specifications
| Brand | SK Hynix |
| Category | Memory (RAM) |
| SKU | HMAA8GR7AJR4N-WM |
| Part Number | HMAA8GR7AJR4N-WM |
| Condition | New |
| Capacity | 64GB |
| Form Factor | RDIMM |
| Speed | 6400 MT/s |
| Manufacturer Part Number | HMAA8GR7AJR4N-WM |
| Module Type | RDIMM (Registered DIMM) |
| Memory Technology | DDR5 SDRAM |
| Capacity | 64 GB |
| Speed Grade | 6400 MT/s |
| Module Frequency | 3200 MHz (effective 6400 MT/s) |
| Data Bus Width | 64-bit |
| Error Correction | On-Die ECC (ODECC) + Registered CA Bus |
| Rank Configuration | 2Rx4 (Dual Rank, x4 device width) |
| Number of DRAM Devices | 16 |
| Form Factor | 288-pin DIMM |
| Operating Voltage (VDD) | 1.1V |
| CAS Latency | CL46 |
| Primary Timings | 46-45-45 |
| On-DIMM PMIC | Yes (per JEDEC DDR5 specification) |
| Operating Temperature | 0°C to 85°C (standard commercial server range) |
| PCB Height | Standard RDIMM (31.25 mm) |
| Compatible Platforms | Intel 4th Gen Xeon Scalable (Sapphire Rapids), AMD EPYC 9004 (Genoa) |
| JEDEC Compliance | JEDEC DDR5 Standard |
Frequently Asked Questions about SK Hynix DDR5 64GB 6400 MT/s RDIMM
What does the SK Hynix DDR5 64GB 6400 MT/s RDIMM do?
The SK Hynix DDR5 64GB 6400 MT/s RDIMM is enterprise server memory designed for ECC-protected workloads — virtualization hosts, database servers, analytics platforms, and AI training rigs. SK Hynix validates this module against major server vendor compatibility matrices.
What are the headline specs of the SK Hynix DDR5 64GB 6400 MT/s RDIMM?
Key specifications for the SK Hynix DDR5 64GB 6400 MT/s RDIMM: new condition; memory type DDR5; memory capacity 64GB; memory speed 6400 MT/s; memory voltage 1.1V; memory form factor RDIMM. Manufacturer part number HMAA8GR7AJR4N-WM. For the full datasheet with electrical, environmental, and compliance details, contact our pre-sales engineering team.