SK hynix HMCG94MEBRA109N 64GB DDR5-4800 ECC RDIMM Server Memory

SK hynix HMCG94MEBRA109N 64GB DDR5-4800 ECC RDIMM Server Memory

The SK hynix HMCG94MEBRA109N is a high-capacity 64GB DDR5-4800 ECC Registered DIMM (RDIMM) designed for compatible enterprise servers, data-center infrastructure, professional computing systems, and other memory-intensive environments. Manufactured by SK hynix, this server memory module combines high capacity, DDR5 bandwidth, ECC reliability, and registered-memory architecture for demanding professional workloads.

With a rated data transfer speed of 4800 MT/s, the HMCG94MEBRA109N provides a PC5-38400 bandwidth classification. DDR5-4800 technology provides high memory bandwidth for modern server processors and is suitable for workloads that require efficient movement of data between the CPU and system memory.

The module provides 64GB of memory capacity in a single DIMM, allowing compatible server platforms to increase their available system memory without consuming multiple DIMM slots. This makes it particularly useful for virtualization environments, database servers, cloud infrastructure, enterprise applications, analytics, and other workloads where substantial memory capacity is required.

The HMCG94MEBRA109N incorporates ECC (Error-Correcting Code) technology. ECC memory is designed to detect and correct certain types of memory errors, helping improve data integrity and system stability. This makes ECC memory particularly suitable for enterprise and data-center environments where reliability and continuous operation are important.

This module uses a Registered DIMM (RDIMM) architecture. Registered memory includes register circuitry that helps manage the electrical load between the memory controller and DRAM devices. This architecture is commonly used in enterprise servers and enables compatible platforms to support larger memory configurations.

The HMCG94MEBRA109N features a 2Rx4 dual-rank organization. The x4 organization is confirmed by SK hynix’s module listing, while exact-MPN product listings identify the module as 2Rx4. This specification is important when determining compatibility and following the DIMM population rules of a particular server platform.

The module uses a standard 288-pin DIMM form factor and operates at 1.1V. It is intended for systems specifically designed to support DDR5 ECC Registered memory.

High-Capacity 64GB Server Memory

With 64GB available on a single module, the HMCG94MEBRA109N is well suited to servers that require substantial memory capacity while maintaining room for additional DIMMs and future upgrades.

Large-capacity memory modules can be particularly beneficial in virtualization environments, where multiple virtual machines may share the same physical server resources. Additional RAM can allow administrators to allocate more memory to virtual machines and support larger or more concurrent workloads.

DDR5-4800 Performance

The HMCG94MEBRA109N is rated at DDR5-4800 / 4800 MT/s, with a PC5-38400 bandwidth classification. This provides a high-speed memory interface for compatible enterprise server platforms.

The actual operating speed can depend on the server platform, processor, BIOS configuration, memory population, and other system-level factors. Therefore, customers should verify their server’s supported memory speed before purchasing.

ECC Reliability

ECC technology helps protect against certain types of memory errors by detecting and correcting supported errors automatically. This additional error-handling capability is one of the reasons ECC memory is widely used in professional servers and data-center infrastructure.

Registered RDIMM Architecture

Unlike standard consumer UDIMM memory, the HMCG94MEBRA109N is a Registered DIMM (RDIMM) designed for compatible server platforms.

Customers should therefore verify that their system supports DDR5 ECC RDIMM before installation. This module is not intended as a generic replacement for desktop UDIMM or laptop SO-DIMM memory.

Enterprise and Data-Center Applications

The SK hynix HMCG94MEBRA109N can be used in compatible systems for:

• 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
• Professional computing
• Business-critical applications
• Memory-intensive workloads

Proven Enterprise Server Usage

The exact HMCG94MEBRA109N has been documented in enterprise server configurations. SPEC benchmark records show this exact SK hynix module installed in Supermicro SuperServer SYS-221H-TNR systems, with 64GB modules operating at 4800 MT/s. Another SPEC result documents 16 × SK hynix HMCG94MEBRA109N 64GB 2-rank 4800 MT/s modules in the same server family.

This provides useful evidence of its use in real-world enterprise server configurations.

Technical Specifications

The core specifications are supported by SK hynix’s module database and multiple exact-MPN listings.