SK Hynix 64GB DDR5-7200 RDIMM Server Memory HMCG94CKBRA438N

Brand: SK Hynix | Category: Memory (RAM)

SKU: HMCG94CKBRA438N | Part #: HMCG94CKBRA438N | MPN: HMCG94CKBRA438N

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Product Overview

The SK Hynix 64GB DDR5-7200 RDIMM (Registered Dual Inline Memory Module) represents the cutting edge of server memory technology, purpose-built for the demands of modern enterprise computing. Operating at an impressive 7200 MT/s data transfer rate, this module delivers substantially greater bandwidth than previous-generation DDR4 platforms, enabling CPUs to move data faster and process more complex workloads in parallel. As data centre architectures evolve to accommodate artificial intelligence, machine learning inference, in-memory analytics, and massively parallel virtualisation, memory subsystem performance has become a primary bottleneck — and SK Hynix addresses this directly with one of the fastest standard RDIMM offerings on the market today.

SK Hynix is a globally recognised leader in semiconductor memory manufacturing, consistently ranked among the top three DRAM producers worldwide. Their DDR5 RDIMM lineup is engineered to meet the rigorous qualification standards required by major server OEMs and cloud hyperscalers, ensuring compatibility, reliability, and long-term operational stability in mission-critical environments. This 64GB module offers a substantial per-DIMM capacity point that allows enterprise IT teams to maximise total system memory without fully populating all DIMM slots, preserving future expandability.

For enterprise buyers across the GCC — from Tier-3 data centres in Dubai and Abu Dhabi to government cloud infrastructure in Saudi Arabia and Kuwait — the SK Hynix 64GB DDR5-7200 RDIMM provides a future-proof memory foundation that aligns with the region's aggressive digital transformation roadmap.

Key Features & Benefits

• Ultra-High Speed at DDR5-7200: Operates at 7200 MT/s, delivering peak theoretical bandwidth of approximately 57.6 GB/s per module — a dramatic leap over DDR4-3200 which maxes out at 25.6 GB/s, enabling significantly faster data-intensive operations.
• 64GB High-Density Capacity: Each module provides 64 gigabytes of addressable memory, allowing servers to achieve 1TB+ total memory configurations with fewer DIMMs, reducing power draw and slot pressure in high-density compute nodes.
• Registered (Buffered) Architecture: The RDIMM design uses a register clock driver (RCD) to buffer command and address signals between the memory controller and DRAM chips, reducing electrical load and enabling stable operation in multi-DIMM configurations across enterprise motherboards.
• ECC (Error-Correcting Code) Support: Built-in ECC capability detects and corrects single-bit memory errors in real time, protecting data integrity in always-on mission-critical applications such as financial databases, healthcare records systems, and telecommunications platforms.
• DDR5 On-Die ECC (ODECC): Beyond system-level ECC, DDR5 architecture introduces on-die error correction within each DRAM chip itself, providing an additional layer of reliability that significantly reduces uncorrectable error rates compared to DDR4.
• Improved Power Efficiency: DDR5 operates at a native 1.1V voltage versus DDR4's 1.2V, which translates to measurable reductions in per-module power consumption. At scale across hundreds of servers, this delivers meaningful TCO savings in power and cooling costs.
• Dual Sub-Channel Architecture: DDR5 introduces two independent 32-bit sub-channels per module (versus DDR4's single 64-bit channel), improving memory access parallelism and reducing latency for mixed read/write workloads.
• Brand New Condition: Supplied factory-sealed and brand new, ensuring full component lifespan, manufacturer-consistent binning, and eligibility for OEM qualification processes.

Technical Architecture

The HMCG94CKBRA438N is built on SK Hynix's advanced DRAM fabrication process, utilising high-density DDR5 DRAM chips organised in a registered dual inline memory module form factor. The module features 288 pins in the standard DDR5 RDIMM configuration and operates with a 1.1V supply voltage.

The DDR5 standard fundamentally restructures the memory interface compared to DDR4. Each DDR5 RDIMM contains two independent 32-bit wide sub-channels, each with its own command/address bus. This architectural change effectively doubles the number of memory transactions that can be initiated per clock cycle in certain access patterns, improving bandwidth utilisation and reducing queue depths in highly concurrent workloads.

The registered clock driver (RCD02 generation for DDR5) on this RDIMM buffers all command, address, and control signals before they reach the DRAM array. This electrical isolation is critical in server platforms where multiple DIMMs per channel are populated — without a register, signal integrity would degrade rapidly at DDR5 speeds. The RCD also supports command/address parity, adding another layer of data integrity checking at the interface level.

SK Hynix engineers the DRAM cells using a high-k metal gate process node that achieves improved cell density and reduced leakage current. The result is a module that sustains rated 7200 MT/s operation across a wide range of operating temperatures (typically 0°C to 85°C case temperature) with strict adherence to JEDEC DDR5 specification timings and refresh parameters including Fine Granularity Refresh (FGR) and Same Bank Refresh (SBR) modes that optimise memory array management in always-on server environments.

Performance & Capacity

At DDR5-7200 with a 64-bit effective bus width (two 32-bit sub-channels combined), this module achieves a theoretical peak bandwidth of approximately 57.6 GB/s per DIMM. In dual-channel or quad-channel server configurations — as found in platforms based on Intel Xeon Scalable (Sapphire Rapids/Granite Rapids) and AMD EPYC (Genoa/Turin) processors — aggregate memory bandwidth can exceed 460 GB/s, enabling the kind of sustained throughput required by large language model (LLM) inference, real-time analytics, and high-frequency transaction processing.

The 64GB capacity per module allows a standard 2-socket server with 16 DIMM slots to achieve a maximum of 1TB of total system memory, a configuration increasingly demanded by in-memory database workloads (SAP HANA, Oracle TimesTen, Redis Enterprise) and large virtualised environments running hundreds of concurrent VMs. Latency at DDR5-7200 with standard CAS timings is competitive with previous-generation DDR5-4800 modules, with the higher frequency compensating for any modest increase in absolute CAS cycles.

Compatibility & Integration

The SK Hynix DDR5-7200 RDIMM is designed to comply with JEDEC DDR5 SDRAM standards and is compatible with server platforms featuring DDR5 RDIMM-capable memory controllers. Supported platforms include:

• Intel Xeon Scalable 4th and 5th Generation (Sapphire Rapids, Granite Rapids) on platforms such as Dell PowerEdge R760, HPE ProLiant DL380 Gen11, Lenovo ThinkSystem SR650 V3, and Supermicro X13 series
• AMD EPYC 4th Generation (Genoa) and upcoming Turin-based server platforms supporting DDR5
• Hyperscaler and cloud-native server designs built around DDR5 memory subsystems
• Workstation platforms with RDIMM support (select high-end workstation motherboards from ASUS, Supermicro, and ASRock Rack)

The module operates under JEDEC-standard DDR5 timing profiles and may also support XMP/EXPO profiles on qualifying platforms. ECC functionality is supported by all major server operating systems including Red Hat Enterprise Linux, SUSE Linux Enterprise Server, Ubuntu Server LTS, VMware ESXi, Microsoft Windows Server 2019/2022, and all major hypervisors. The module carries compliance with RoHS environmental directives, making it suitable for deployment in regulated industry environments across the EU, GCC, and global markets.

Ideal Use Cases

• AI & Machine Learning Training/Inference: Large language models, computer vision pipelines, and recommendation engines require massive memory bandwidth to feed GPU and CPU compute units. The DDR5-7200 speed class ensures minimal memory-side bottlenecking in AI accelerator server configurations.
• High-Density Virtualisation: Environments running VMware vSphere, Microsoft Hyper-V, or KVM with hundreds of concurrent virtual machines benefit directly from the 64GB per-DIMM capacity, enabling terabyte-scale memory pools that reduce VM memory overcommit ratios.
• In-Memory Databases & OLAP Analytics: Platforms such as SAP HANA, Oracle In-Memory, and ClickHouse require enormous working memory sets to hold analytical datasets in RAM. High-capacity DDR5 RDIMMs make these deployments economically and physically feasible.
• HPC & Scientific Computing: Computational fluid dynamics, genomic sequencing, seismic modelling, and financial Monte Carlo simulations all exhibit strong memory-bandwidth sensitivity. DDR5-7200 accelerates these throughput-bound workloads measurably.
• Cloud & Managed Service Provider Infrastructure: MSPs and cloud providers building multi-tenant compute nodes require reliable ECC memory with maximum density to minimise hardware footprint and power consumption per workload unit — exactly the value proposition of this module.
• Real-Time Transaction Processing (OLTP): High-frequency trading platforms, payment processing gateways, and telecom billing systems demand low-latency, high-reliability memory. ECC and on-die ECC protection ensure data integrity under sustained transactional load.
• Government & Defence Compute: Secure, air-gapped, or sovereign cloud deployments across GCC government agencies and defence ministries require enterprise-grade memory with traceable, brand-new provenance — which this factory-sealed SK Hynix module provides.

Why Buy from Omnixon

Omnixon Global is a trusted B2B IT hardware distributor headquartered in Dubai, UAE, with deep expertise in supplying enterprise memory, compute, storage, and networking solutions to clients across the GCC and globally. We maintain locally held inventory of high-demand components including DDR5 server memory, allowing enterprise IT teams, system integrators, and procurement managers to source critical hardware without the extended lead times associated with overseas direct imports. Our team provides expert pre-sales consultation to confirm platform compatibility, validate configurations, and ensure that every module ordered matches the exact technical requirements of your server environment. Omnixon serves data centres, government entities, financial institutions, telecommunications providers, and cloud operators across Saudi Arabia, UAE, Qatar, Kuwait, Bahrain, Oman, and beyond — backed by a commitment to authentic, brand-new product supply and professional enterprise service standards.

Related Products & Ecosystem

To build a complete, high-performance server memory configuration, consider pairing this SK Hynix 64GB DDR5-7200 RDIMM with complementary products available from Omnixon's broad portfolio. Enterprise servers from Dell, HPE, Lenovo, and Supermicro provide the DDR5-capable platforms that unlock the full performance of this module. For compute-intensive AI and HPC nodes, NVIDIA and AMD GPU accelerators paired with high-bandwidth DDR5 memory create powerful training clusters. Enterprise NVMe SSDs from Samsung, Micron, and Kioxia complement fast memory subsystems by eliminating storage I/O bottlenecks. High-speed network adapters and switches from Cisco, Arista, and Mellanox complete the data path from memory to network fabric. For power protection of your server infrastructure, APC, Eaton, and Vertiv UPS solutions ensure uptime continuity in demanding GCC data centre environments.