The SK hynix HMCG94AGBRA181N is a 64GB DDR5-5600 ECC Registered DIMM (RDIMM) designed for compatible enterprise servers, data-center systems, professional workstations, and other high-performance computing environments. The exact part number is identified as a DDR5-5600B 8Gx80 RDIMM 2Rx4 (64GB) module.
With a rated speed of 5600 MT/s, this module provides a PC5-44800 memory classification, delivering high memory bandwidth for modern server and professional computing platforms. The module uses a 2Rx4 dual-rank organization and a standard 288-pin DIMM form factor.
The 64GB capacity allows compatible systems to significantly expand available system memory while using a single DIMM slot. This makes the HMCG94AGBRA181N well suited for memory-intensive workloads such as server virtualization, cloud computing, database management, enterprise applications, data analytics, artificial intelligence infrastructure, and data-center operations.
The module uses ECC (Error-Correcting Code) technology, which is designed to detect and correct certain types of memory errors. ECC is particularly important in professional server environments where data integrity, system stability, and continuous operation are critical.
As a Registered DIMM, the HMCG94AGBRA181N is designed for compatible server platforms rather than conventional desktop or laptop systems. Registered memory uses additional register circuitry to help manage the electrical load between the memory controller and DRAM devices, making RDIMMs suitable for enterprise systems with larger memory configurations.
DDR5-5600 Performance
The HMCG94AGBRA181N operates at DDR5-5600 / 5600 MT/s, corresponding to PC5-44800. DDR5 technology provides increased memory bandwidth compared with previous-generation DDR4 platforms, making it suitable for modern processors and workloads that require rapid access to large amounts of system memory.
The actual operating speed can depend on the server processor, BIOS configuration, DIMM population, and platform architecture. Customers should therefore verify the supported memory specifications of their particular system before installation.
64GB High-Capacity Server Memory
With 64GB on a single DIMM, this module provides a substantial amount of memory capacity without requiring multiple lower-capacity modules. This can be advantageous for systems with limited DIMM slots or for customers who want to maintain additional slots for future memory expansion.
The module is suitable for servers running multiple virtual machines, large databases, enterprise applications, analytics workloads, and other applications that benefit from increased system RAM.
2Rx4 ECC RDIMM Architecture
The 2Rx4 configuration identifies the HMCG94AGBRA181N as a dual-rank x4 server memory module. This specification is important when determining compatibility with a particular server or workstation platform and when following the manufacturer’s DIMM population guidelines.
Enterprise and Data-Center Applications
The SK hynix HMCG94AGBRA181N can be used in compatible systems for:
- Enterprise servers
- Data-center infrastructure
- Server virtualization
- Cloud computing
- Database servers
- Application servers
- Web hosting
- Enterprise software
- Data analytics
- AI and machine-learning infrastructure
- Virtual desktop infrastructure
- Professional workstations
- High-performance computing
- Business-critical applications
- Memory-intensive workloads
The exact HMCG94AGBRA181N has also been documented in real-world workstation/server configurations, including systems using multiple 64GB modules for high-capacity memory configurations.
Compatibility
The HMCG94AGBRA181N is DDR5 ECC Registered RDIMM memory. It should only be installed in a compatible system that supports DDR5 RDIMMs.
Before purchasing, customers should verify:
- Server or workstation model
- Processor generation
- DDR5 RDIMM support
- 64GB DIMM support
- 2Rx4 memory configuration
- Supported memory speed
- Maximum system memory capacity
- DIMM population requirements
- BIOS/platform compatibility
Technical Specifications
| Specification | Details |
|---|---|
| Manufacturer | SK hynix |
| Part Number | HMCG94AGBRA181N |
| 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 |
| Voltage | 1.1V |
| Pins | 288-pin |
| Form Factor | DIMM |
| Application | Enterprise Server / Data Center |
| Condition | Refurbished |
| Warranty | 1 Year |
| Availability | In Stock |
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