Product Overview
The SK Hynix HMCG94AHBRA481N is a high-performance 64GB DDR5 ECC Registered DIMM engineered for enterprise server and workstation environments. Operating at 6400MHz (PC5-51200) with a dual-rank x4 (2Rx4) configuration and 288-pin form factor, this module delivers exceptional memory bandwidth and reliability for demanding data center workloads including virtualization, AI inference, cloud computing, financial modeling, and large-scale database operations. The DDR5 architecture provides significant improvements in bandwidth, power efficiency, and signal integrity over previous generations, while ECC (Error-Correcting Code) support actively detects and corrects memory errors to ensure system stability and data integrity. This is a server-only module and is not compatible with desktop or laptop systems.
Technical Specifications
| Part Number | HMCG94AHBRA481N |
| Manufacturer | SK Hynix |
| Capacity | 64GB (1 x 64GB) |
| Memory Type | DDR5 |
| Speed / Frequency | DDR5-6400 / 6400MHz (6400 MT/s) |
| PC Rating | PC5-51200 |
| Form Factor | RDIMM (Registered DIMM) / EC8 RDIMM |
| Pin Count | 288-Pin |
| Rank | 2Rx4 (Dual Rank x4) |
| ECC | Yes — ECC Registered |
| Voltage | 1.1V |
| CAS Latency | CL46 |
| Compatibility | Enterprise Servers & Workstations with DDR5 RDIMM slots (e.g., Dell PowerEdge, HPE ProLiant, Supermicro, Lenovo ThinkSystem) |
| Condition | Refurbished / System Pull — Tested & Verified |
Condition & Warranty
This module is offered in refurbished condition, sourced as a system pull from professionally maintained enterprise hardware. Each unit undergoes full functional testing prior to shipment to ensure reliable operation. This listing includes a 90-day replacement warranty covering defects in material and workmanship. Buyers should verify DDR5 RDIMM slot compatibility with their target server platform prior to purchase. This product is intended for B2B, data center, and enterprise use.