SK hynix HMCG94AEBRA123N 64GB DDR5-4800 ECC RDIMM Server Memory
The SK hynix HMCG94AEBRA123N is a high-capacity 64GB DDR5-4800 ECC Registered DIMM (RDIMM) designed for compatible enterprise servers, data centers, professional workstations, and other demanding computing environments. Manufactured by SK hynix, this server memory module combines high memory capacity, DDR5 performance, ECC data protection, and registered-memory architecture for reliable operation in professional IT infrastructure.
With a rated data transfer speed of 4800 MT/s, the HMCG94AEBRA123N provides a PC5-38400 memory bandwidth rating. DDR5-4800 technology offers increased memory bandwidth compared with previous-generation DDR4 platforms, making this module suitable for modern server workloads that require efficient movement of large amounts of data between the processor and system memory.
The module provides 64GB of memory capacity, allowing compatible servers to increase their available system memory while using a single DIMM slot. This can be particularly beneficial in virtualization environments, database servers, cloud infrastructure, enterprise applications, analytics systems, and other workloads where large amounts of RAM are required.
The HMCG94AEBRA123N uses ECC (Error-Correcting Code) memory technology. ECC is designed to detect and correct certain types of memory errors, helping maintain data integrity and system stability. This makes ECC memory especially suitable for professional server environments where reliability and consistent operation are important.
The module uses a Registered DIMM (RDIMM) architecture. Registered memory incorporates register circuitry between the memory controller and the DRAM devices, helping manage electrical loading and supporting larger memory configurations on compatible enterprise server platforms. Because this is an RDIMM, it should be installed only in systems that specifically support DDR5 Registered ECC memory.
The HMCG94AEBRA123N features a 2Rx4 dual-rank organization. Its x4 organization is an important characteristic of the module and should be considered when planning server memory configurations and DIMM populations. The exact part number is listed as a 64GB, 2Rx4 DDR5-4800 RDIMM by multiple component and memory suppliers.
This module uses a standard 288-pin DIMM form factor and operates at 1.1V according to several exact-MPN listings. The module is also commonly listed with CL40 timing.
The SK hynix HMCG94AEBRA123N is designed for professional computing environments where memory capacity, bandwidth, data integrity, and stability are important. It can be used for compatible enterprise servers, data centers, virtualization, cloud computing, database applications, web hosting, enterprise software, data analytics, and other memory-intensive workloads.
High-Capacity Server Memory
With 64GB on a single DIMM, the HMCG94AEBRA123N provides substantial memory capacity without requiring multiple lower-capacity modules. This can be useful for servers that have a limited number of available DIMM slots or for configurations where administrators want to maintain additional slots for future expansion.
DDR5-4800 Performance
The module operates at DDR5-4800 / 4800 MT/s, providing high memory bandwidth for compatible server processors and applications. Its PC5-38400 classification represents the theoretical bandwidth class associated with DDR5-4800 memory.
ECC Reliability
ECC memory is designed to provide additional protection against certain memory errors. This is particularly valuable in enterprise environments where data accuracy and system stability are important considerations.
Registered RDIMM Architecture
As an RDIMM, the HMCG94AEBRA123N is intended for compatible server platforms rather than standard consumer desktop computers. Registered memory is commonly used in enterprise systems requiring larger memory configurations and reliable operation.
2Rx4 Dual-Rank Configuration
The 2Rx4 organization identifies the module as a dual-rank x4 server-memory configuration. This specification can be important when determining compatibility and correct DIMM population for a particular server platform.
Recommended Applications
The SK hynix HMCG94AEBRA123N is suitable for compatible:
Enterprise servers
Data-center infrastructure
Server virtualization
Cloud computing
Database servers
Application servers
Web servers
Enterprise software
Data analytics
Virtual desktop infrastructure
High-performance computing
Business-critical applications
Professional workstations
Memory-intensive workloads
Compatibility
The HMCG94AEBRA123N is server-grade DDR5 ECC Registered memory and is not intended for ordinary consumer desktop or laptop systems.
Before installation, customers should verify that their server supports:
DDR5 memory
ECC RDIMM
64GB DIMMs
2Rx4 configuration
The required memory speed
The appropriate DIMM population configuration
The required processor and platform generation
The actual operating speed can be lower than 4800 MT/s depending on the server, processor, BIOS configuration, and DIMM population.
Technical Specifications
Specification Details
Manufacturer SK hynix
Part Number HMCG94AEBRA123N
Capacity 64GB
Memory Generation DDR5
Memory Type ECC Registered DIMM
Module Type RDIMM
Speed 4800 MT/s
Standard DDR5-4800
Bandwidth PC5-38400
Rank 2Rx4 / Dual Rank
CAS Latency CL40
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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