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

Brand: SK Hynix | Category: Memory (RAM)

SKU: HMCG94MEBRA109N | Part #: HMCG94MEBRA109N

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Product Overview

The SK hynix 64GB DDR5-4800 ECC RDIMM represents a significant leap forward in enterprise server memory technology. Engineered by one of the world's leading semiconductor manufacturers, this module delivers the raw bandwidth, capacity density, and signal integrity demanded by modern data centre workloads. DDR5 is the fifth generation of Double Data Rate synchronous dynamic random-access memory, and this RDIMM variant incorporates on-die ECC, a registered buffer, and advanced power management that collectively make it the memory of choice for mission-critical server deployments across cloud, HPC, AI inference, and enterprise database environments.

Operating at a rated speed of DDR5-4800 (PC5-38400), this 64GB module doubles the per-DIMM capacity density achievable with previous-generation DDR4 RDIMMs of the same rank configuration, enabling system architects to build servers with significantly more addressable memory per socket without increasing DIMM slot count. For organisations running memory-intensive workloads — in-memory databases, large language model inference, real-time analytics, and virtualisation — this translates directly into lower total cost of ownership, reduced physical footprint, and higher workload consolidation ratios.

SK hynix's semiconductor fabrication expertise ensures that every HMCG94MEBRA109N module meets stringent quality thresholds, is tested to JEDEC DDR5 standards, and ships in brand-new condition from Omnixon Global's Dubai-based inventory, ready for immediate deployment across GCC and worldwide enterprise environments.

Key Features & Benefits

• 64GB High-Density Capacity: Maximises memory per slot, enabling server configurations with terabytes of RAM in dual-socket platforms — ideal for in-memory databases, SAP HANA, and large-scale VM host consolidation.
• DDR5-4800 Speed (PC5-38400): Delivers approximately 38,400 MB/s of theoretical peak bandwidth per module, a substantial improvement over DDR4-3200's 25,600 MB/s ceiling, accelerating data-intensive applications measurably.
• On-Die ECC (ODECC): DDR5 introduces mandatory on-die error correction at the DRAM level, catching and correcting single-bit errors within the memory cell array itself before they propagate — providing a foundational reliability layer beyond the module-level ECC.
• Registered (Buffered) DIMM Architecture: The register chip on the RDIMM isolates the command and address bus from the memory controller, drastically reducing electrical load and enabling multi-DIMM-per-channel configurations with stable signal integrity in high-density server builds.
• Improved Power Efficiency: DDR5 operates at 1.1V versus the 1.2V standard of DDR4, reducing per-module power draw. For large server deployments with hundreds of DIMMs, this translates into measurable reductions in total facility power and cooling expenditure.
• JEDEC DDR5 Standard Compliance: Full compliance with JEDEC JESD79-5 specifications ensures broad platform compatibility and interoperability with certified DDR5 server motherboards from major OEMs.
• Advanced Thermal Management: The module's PCB layout and component placement are optimised for airflow in 1U and 2U rack environments, sustaining rated performance under continuous load without throttling.
• Brand New Condition: Sourced directly through authorised channels and distributed by Omnixon Global in sealed, brand-new condition — ensuring full manufacturer quality assurance and traceability.

Technical Architecture

DDR5 RDIMMs represent a fundamental architectural evolution from DDR4. At the physical layer, DDR5 introduces a split 32-bit bus structure per channel (two sub-channels of 32 bits each, including ECC bits) rather than a single 64-bit bus. This sub-channel architecture improves memory controller efficiency by enabling independent access to each sub-channel, reducing latency for workloads with irregular access patterns.

The HMCG94MEBRA109N module is built using SK hynix's advanced DRAM die technology. The registered buffer (RCD) on the RDIMM receives command and address signals from the host memory controller and re-drives them to the DRAM array, enabling signal integrity to be maintained even at high DIMM counts per channel. DDR5 RDIMMs also incorporate an on-board Power Management Integrated Circuit (PMIC), which moves voltage regulation from the motherboard to the module itself. This design reduces motherboard complexity, improves voltage precision at the DRAM level, and allows finer-grained power management per module.

On-die ECC (ODECC) in DDR5 operates independently of and in addition to the traditional system-level ECC implemented by the memory controller. ODECC uses dedicated ECC bits within each DRAM die to detect and correct single-bit errors internally, providing an additional tier of data integrity protection — particularly valuable given the increased bit density of advanced DRAM process nodes.

Performance & Capacity

At DDR5-4800 with a standard CAS latency of CL40 (40-39-39), the HMCG94MEBRA109N delivers a theoretical peak bandwidth of approximately 38,400 MB/s per module. In a dual-channel or multi-channel server platform populating all available DIMM slots, aggregate memory bandwidth can reach hundreds of gigabytes per second — critical for feeding high-core-count processors such as Intel Xeon Scalable (Sapphire Rapids and beyond) and AMD EPYC (Genoa, Bergamo) with the data throughput they require.

The 64GB capacity per DIMM allows a dual-socket server with 16 DIMM slots (8 per socket) to achieve 1TB of total system memory — previously requiring higher-cost 128GB LRDIMMs or larger slot counts. For quad-channel and eight-channel memory controller architectures, the aggregate bandwidth and capacity figures scale proportionally, making this module a practical choice for extremely memory-hungry deployments without requiring exotic LRDIMM configurations.

Latency, while nominally higher in absolute clock cycles for DDR5 versus DDR4, is broadly comparable in nanoseconds due to the higher clock frequency, and the substantially increased bandwidth more than compensates for workloads that are bandwidth-bound rather than latency-bound — which describes the majority of enterprise analytics, AI, and virtualisation workloads.

Compatibility & Integration

The SK hynix HMCG94MEBRA109N is designed for compatibility with server platforms that support DDR5 ECC RDIMM modules, including:

• Intel Xeon Scalable (4th Gen — Sapphire Rapids): Platforms including Dell PowerEdge R760, HPE ProLiant DL380 Gen11, Supermicro X13 series, and Lenovo ThinkSystem SR650 V3 that feature DDR5 RDIMM support.
• AMD EPYC (4th Gen — Genoa/Bergamo): Twelve-channel DDR5 memory controller platforms such as Dell PowerEdge R7625, HPE ProLiant DL385 Gen11, and Supermicro H13 series.
• JEDEC DDR5 JESD79-5 Standard: Full compliance ensures interoperability across any certified DDR5 RDIMM-compatible platform.
• ECC Support: Works with server platforms that have memory controller-level ECC enabled, as well as the DDR5 sub-channel ECC architecture.
• Operating Systems: Compatible with all major enterprise operating systems including Red Hat Enterprise Linux, SUSE Linux Enterprise Server, Ubuntu Server, Windows Server 2022 and later, VMware vSphere 8.x, and others that support DDR5 memory.

Before deployment, administrators should verify platform QVL (Qualified Vendor List) documentation for their specific server model and BIOS version to confirm DIMM slot population rules and mixed-configuration guidelines.

Ideal Use Cases

• AI & Machine Learning Inference: Large language model inference and deep learning workloads require fast, high-capacity memory to hold model weights and activations. The 64GB density and DDR5-4800 bandwidth directly reduce inference latency and increase throughput per server node.
• In-Memory Databases (SAP HANA, Redis, VoltDB): Databases that operate entirely within DRAM benefit enormously from both the capacity increase (fitting larger datasets in-memory) and the bandwidth improvement (accelerating query processing).
• High-Density Server Virtualisation (VMware vSphere, Nutanix, Hyper-V): Virtualisation hosts can consolidate more VMs per server when equipped with high-capacity DIMMs, reducing per-VM memory cost and improving VM density metrics.
• High-Performance Computing (HPC) & Scientific Simulation: Computational fluid dynamics, genomics processing, financial risk modelling, and similar HPC workloads are bandwidth-constrained and benefit directly from DDR5's expanded memory bandwidth envelope.
• Real-Time Analytics & OLAP (ClickHouse, Apache Spark, SAP BW): Column-store analytics engines processing large datasets in real time require high aggregate memory bandwidth; DDR5-4800 RDIMMs deliver this at scale.
• Cloud Infrastructure & Hyperscale Deployments: Cloud service providers and hyperscale operators building dense memory pools benefit from 64GB RDIMM modules that maximise capacity per rack unit while minimising power draw per gigabyte.
• Enterprise ERP & Business-Critical Applications: Tier-1 ERP systems running Oracle, SAP, and Microsoft SQL Server workloads require both capacity headroom and reliable ECC-protected memory to maintain uptime and data integrity SLAs.

Why Buy from Omnixon Global

Omnixon Global is a trusted B2B IT hardware distributor headquartered in Dubai, UAE, serving enterprise clients across the Gulf Cooperation Council region and beyond. Our Dubai-based stock ensures that businesses in the UAE, Saudi Arabia, Qatar, Kuwait, Bahrain, Oman, and wider MENA markets can procure enterprise memory modules with confidence, backed by local expertise and logistics infrastructure. We specialise in sourcing brand-new, genuine hardware from authorised channels, providing enterprise IT teams, system integrators, data centre operators, and procurement managers with the traceability and quality assurance they require for mission-critical deployments. Our technical team understands the nuances of DDR5 platform compatibility, memory population rules, and enterprise deployment requirements, and is available to assist with configuration validation and bulk procurement inquiries. With Omnixon, you gain a reliable regional technology partner with deep inventory, rigorous quality processes, and the capability to fulfil enterprise-scale memory requirements efficiently across the GCC and internationally.

Related Products & Ecosystem

Building a complete, high-performance server memory infrastructure often requires consideration of the broader ecosystem. Omnixon Global stocks a wide range of complementary enterprise IT hardware that pairs naturally with DDR5 RDIMM modules, including enterprise-grade servers from Dell, HPE, Supermicro, and Lenovo that support DDR5 memory architectures; Intel Xeon Scalable and AMD EPYC processors that leverage DDR5's full bandwidth capabilities; enterprise NVMe SSDs and SAS/SATA storage systems for tiered storage architectures; high-speed network adapters and switches for the data fabric surrounding your server infrastructure; and GPU accelerators for AI and HPC workloads that benefit from large, fast CPU memory pools. Whether you are upgrading an existing DDR4 environment to DDR5 or building a greenfield data centre, Omnixon's broad product catalogue enables one-stop procurement for your entire infrastructure stack.