SK hynix HMCG94AGBRA177N 64GB DDR5-5600 ECC RDIMM Server Memory
The SK hynix HMCG94AGBRA177N is a high-performance 64GB DDR5-5600 ECC Registered DIMM (RDIMM) designed for compatible enterprise servers, data centers, professional computing platforms, and other demanding IT environments. This SK hynix server memory module combines high memory capacity, DDR5-5600 performance, ECC data protection, and a registered architecture to provide reliable memory resources for modern enterprise workloads.
With a rated data transfer speed of 5600 MT/s, the HMCG94AGBRA177N provides a PC5-44800 bandwidth classification. This high-speed DDR5 memory is designed for modern server platforms that require increased memory bandwidth for demanding applications and data-intensive workloads.
The module provides 64GB of memory capacity in a single DIMM, allowing compatible servers to expand their available RAM while preserving additional DIMM slots for future upgrades. This makes the HMCG94AGBRA177N particularly useful in virtualization, cloud computing, database servers, enterprise applications, analytics, and other memory-intensive environments.
The HMCG94AGBRA177N uses ECC (Error-Correcting Code) technology. ECC memory is designed to detect and correct certain types of memory errors, helping improve data integrity and overall system stability. This makes ECC memory especially appropriate for enterprise servers and data-center infrastructure where reliability and continuous operation are important.
This module is a Registered DIMM (RDIMM), meaning it incorporates register circuitry between the memory controller and the DRAM devices. Registered memory is specifically designed for compatible server platforms and helps support larger memory configurations. The HMCG94AGBRA177N should therefore be installed only in systems that support DDR5 ECC Registered DIMMs.
The module features a 2Rx4 dual-rank configuration, an important specification for server compatibility and DIMM population planning. SK hynix and multiple independent listings identify this exact part number as a 64GB 2Rx4 DDR5-5600 RDIMM.
The HMCG94AGBRA177N uses a 288-pin DIMM form factor and operates at 1.1V. It is commonly specified with CL46 CAS latency.
High-Capacity 64GB Server Memory
The 64GB capacity of the HMCG94AGBRA177N makes it an excellent option for servers requiring substantial memory capacity per DIMM. Using higher-capacity modules can help administrators increase total system RAM while retaining available DIMM slots for additional expansion.
This is especially beneficial for systems running multiple virtual machines, large databases, enterprise applications, or other workloads that require significant amounts of system memory.
DDR5-5600 Performance
The HMCG94AGBRA177N is rated at DDR5-5600 / 5600 MT/s, corresponding to PC5-44800. The increased bandwidth of DDR5 can benefit compatible applications that frequently transfer large amounts of data between the processor and system memory.
The actual operating speed may vary depending on the server platform, processor, BIOS configuration, DIMM population, and system memory architecture.
ECC Reliability
ECC technology provides additional protection against certain types of memory errors. This is particularly important in enterprise environments where data integrity and system uptime are critical.
Registered RDIMM Architecture
The HMCG94AGBRA177N is an ECC Registered DIMM, not a standard desktop UDIMM or laptop SO-DIMM. It is designed specifically for compatible enterprise server and professional computing platforms.
Enterprise Server Usage
The exact HMCG94AGBRA177N is not simply a generic memory specification. Cisco’s official UCS release notes specifically identify this exact Hynix module among supported 5600 DIMMs:
Hynix 64GB 2Rx4 PC5-5600B-RA0-1010-XT — HMCG94AGBRA177N.
This makes it particularly relevant for compatible Cisco UCS environments, in addition to other server platforms that support its specifications.
Recommended Applications
The SK hynix HMCG94AGBRA177N is suitable for compatible:
- Enterprise servers
- Data-center infrastructure
- Cisco UCS environments
- Server virtualization
- Cloud computing
- Database servers
- Application servers
- Web servers
- Enterprise software
- Data analytics
- Virtual desktop infrastructure
- High-performance computing
- Professional computing
- Business-critical applications
- Memory-intensive workloads
Technical Specifications
| Specification | Details |
|---|---|
| Manufacturer | SK hynix |
| Manufacturer Part Number | HMCG94AGBRA177N |
| Capacity | 64GB |
| Memory Generation | DDR5 |
| Memory Type | ECC Registered DIMM |
| Module Type | RDIMM |
| Speed | 5600 MT/s |
| Memory Standard | DDR5-5600 |
| Bandwidth | PC5-44800 |
| Rank | 2Rx4 / Dual Rank |
| ECC | Yes |
| Registered | Yes |
| CAS Latency | CL46 |
| Voltage | 1.1V |
| Pin Count | 288-pin |
| Form Factor | DIMM |
| Application | Enterprise Server / Data Center |
| Condition | Refurbished |
| Warranty | 1 Year |
| Availability | In Stock |






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