SK Hynix 64GB DDR5-4800 RDIMM HMCG94AEBRA

Brand: SK Hynix | Category: Memory (RAM)

SKU: SK -HMCG94AEBRA | Part #: HMCG94AEBRA | MPN: HMCG94AEBRA

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The CL40 timing paired with 1.1V operating voltage on the SK Hynix HMCG94AEBRA DDR5-4800 RDIMM makes this module suitable for workloads where latency matters more than peak clock speed. High-frequency trading platforms, in-memory databases like Redis and Memcached deployments, and real-time analytics systems often benefit from this balance—lower voltage means reduced power draw and heat generation, while CL40 keeps response times predictable in latency-sensitive applications. The 64GB capacity per module reflects where enterprise memory demands sit today: large enough to handle substantial working sets without requiring excessive DIMM population, yet conservative enough to pair efficiently in high-core-count socket configurations.

SK Hynix engineered this module as a registered RDIMM with 2Rx4 rank configuration, a design choice that stabilizes signal integrity in densely populated server memory channels. The DDR5-4800 speed grade (PC5-38400 bus speed) represents the practical middle ground for DDR5 adoption—fast enough to improve aggregate bandwidth for multi-socket systems, yet widely supported across current-generation XEON and EPYC platforms without requiring aggressive BIOS tuning or binned silicon. When your infrastructure team runs 2-socket or 4-socket systems with per-socket DDR5 channels, the 64GB HMCG94AEBRA allows you to reach 1TB+ of addressable memory per system without thermal or power delivery concerns. This is the module a storage architect or AI infrastructure lead selects when they need reliable, well-specified memory that avoids both the cost premium of higher-speed grades and the latency penalty of lower-frequency alternatives.

The ECC-Registered designation is fundamental to enterprise deployment. Any undetected memory error can corrupt data silently, and in financial services, analytics, or AI training workloads, silent corruption is worse than a crash. SK Hynix includes single-error correction across the entire DIMM, and the registered interface isolates address and command signals through a buffer chip, reducing electrical load on the memory controller. This design extends memory controller lifespan and allows server manufacturers to populate more DIMMs per channel without signal degradation—a practical advantage in blade servers and dense 2U systems where 12 or more DIMMs per socket are common. The part number HMCG94AEBRA appears on data-centre bill-of-materials sheets for exactly this reason: it is a known quantity, verified against published SKU lists, and carries SK Hynix's warranty and RoHS compliance documentation.

SK Hynix memory modules are manufactured to JEDEC DDR5 specifications, which means interoperability across OEM platforms—Dell PowerEdge, HPE ProLiant, Lenovo ThinkSystem, and Cisco UCS servers all qualify this speed grade. The 1.1V specification is the JEDEC standard for DDR5, not an overclocking variant, so you avoid the stability and lifespan issues that come with elevated voltages. In production environments where memory uptime is measured in years and support calls are expensive, this matters. The HMCG94AEBRA will not require special cooling solutions, custom firmware, or vendor-specific tuning—slot it into a qualified server, and it runs at rated speed with ECC protection enabled by default. For organisations running heterogeneous server fleets or planning multi-vendor procurement, this standardization reduces spare-parts complexity and training overhead for your operations team.

Power efficiency has become a cost driver in data-centre operations. A 64GB DDR5 module operating at 1.1V dissipates less heat per gigabyte than older DDR4 designs, even though DDR5 offers higher aggregate bandwidth. When you multiply that advantage across a 10-unit rack of servers with 16–32 DIMMs per unit, the reduction in cooling load translates directly to lower facility power draw and lower PUE (Power Usage Effectiveness) metrics. This is why infrastructure procurement teams increasingly specify SK Hynix and other Tier-1 suppliers by voltage and thermal profile, not just capacity. The HMCG94AEBRA fits that brief—it is a known, measured, power-efficient building block for large-scale deployments.

Performance Specifications and Deployment Profile

• Capacity: 64GB per RDIMM; supports 512GB to 2TB per-system configurations in 2-socket or 4-socket platforms
• Speed and Latency: DDR5-4800 (PC5-38400), CL40 timing; suitable for latency-sensitive workloads including trading, real-time analytics, and in-memory databases
• Power Profile: 1.1V nominal operating voltage; JEDEC-standard, no overclocking required; typical module power draw 8–10W active
• Reliability: ECC Registered (2Rx4) design; single-bit error correction across the full 64GB capacity; buffer chip isolates memory controller load
• Compatibility: JEDEC DDR5 standard; qualified on current-generation Intel XEON and AMD EPYC platforms; OEM verified for Dell, HPE, Lenovo, and Cisco
• Form Factor: RDIMM (288-pin); standard 1.32-inch height; fits all modern 1U and 2U server form factors
• Thermal Profile: Passive (no additional heatsink required beyond industry-standard spreader); ideal for dense blade and hyperscale environments

Omnixon Global stocks the SK Hynix HMCG94AEBRA as part of our comprehensive DDR5 memory portfolio, serving data-centre operators, systems integrators, and AI infrastructure teams across the UAE, GCC, Asia, and Europe. Whether you are refreshing a single rack, deploying a new facility, or sourcing memory for a volume server build, we hold current inventory and offer technical pre-sales support to validate compatibility with your platform configuration. Contact our sales team with your requirements, and we will provide a detailed quotation along with lead-time confirmation and logistics options suited to your geographic region.