SK Hynix 48GB DDR5-5600 RDIMM HMCGY8MGBRB

Brand: SK Hynix | Category: Memory (RAM)

SKU: SK -HMCGY8MGBRB | Part #: HMCGY8MGBRB | MPN: HMCGY8MGBRB

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SK Hynix has engineered the HMCGY8MGBRB as a purpose-built 48GB DDR5-5600 RDIMM for Intel Xeon Scalable processors (3rd Generation and later), where it occupies a memory channel slot in dual-socket or multi-socket configurations. This module sits at a critical capacity point in modern data-centre memory hierarchies—large enough to support consolidated workloads in virtualisation clusters and AI inference deployments, yet standard enough to pair with existing infrastructure without requiring architectural redesign. The DDR5-5600 speed grade reflects the performance ceiling of current Xeon memory controllers operating at official JEDEC specifications, making this SK Hynix part a reliable choice for operations teams that prioritize certification and long-term supportability over theoretical peak bandwidth.

The 48GB capacity per DIMM allows infrastructure architects and procurement managers to reach multi-terabyte memory pools with fewer physical slots occupied—a practical advantage in 2U or 3U systems where slot density directly affects cooling strategy and overall power draw. Each HMCGY8MGBRB module runs at 1.1V, aligning with DDR5 standard voltage envelopes and reducing the risk of stability issues that sometimes arise with aggressive overclocking or non-standard timing profiles. The dual-rank configuration (2Rx8) distributes the memory across eight banks per rank, which improves parallelism for workloads that benefit from wider memory access patterns. SK Hynix manufacturing processes ensure consistent latency behaviour at the specified 16 tCK CAS latency—a transparent detail for most users but one that sysadmins monitoring microsecond-level application response times will appreciate, particularly in financial trading platforms or real-time analytics clusters.

Deployment teams evaluating memory for hybrid workload environments will find the SK Hynix HMCGY8MGBRB applicable across several scenarios. Database administrators provisioning servers for in-memory caching layers, such as Redis or Memcached instances, often request this capacity and speed tier to balance per-socket memory investment against query latency requirements. AI infrastructure teams building inference clusters for transformer-based models benefit from the headroom that 48GB per DIMM provides when loading quantized large language models or running batch inference on multiple GPUs per server. Similarly, virtualisation operators deploying Proxmox, VMware vSphere, or KVM environments appreciate the ability to allocate substantial guest RAM pools without fragmenting the underlying physical memory across too many DIMMs, which reduces administrative overhead during firmware updates or memory diagnostics.

SK Hynix maintains strict quality gates on the HMCGY8MGBRB across full operating ranges, including the commercial temperature specification of 0°C to 95°C. This envelope suits data-centre environments where ambient cooling typically maintains intake temperatures around 25–30°C, leaving thermal margin for transient load spikes. The module's organisation as 6G x 80 (six gigabit rows by eighty columns) is transparent to end users but ensures proper address multiplexing within the memory controller's expectations. For customers deploying at scale—purchasing 20, 50, or 100 units at a time—consistency across the batch becomes crucial; SK Hynix's process controls and third-party qualification testing mitigate the risk of performance variance that can introduce subtle debugging challenges in large clusters.

When specifying memory for new server purchases or refresh cycles, the part number HMCGY8MGBRB should be cross-checked against your platform's qualified vendor list (QVL) documentation, particularly if your organisation runs mission-critical workloads under vendor support agreements. SK Hynix has earned the confidence of major OEMs by maintaining backwards compatibility while investing in next-generation manufacturing—a track record worth considering when building procurement strategies that need to survive two or three hardware refresh cycles. The module's compatibility window remains broad; it will operate in any Intel Xeon system supporting DDR5 memory and native 5600 MT/s speeds, though mixed-speed configurations (pairing 5600 MT/s with faster modules) will downclock all memory to the slowest DIMM's rated speed, a detail worth planning for when adding capacity to existing systems.

Performance Specifications

• Capacity: 48GB per DIMM, enabling multi-terabyte pools in 2U/3U form factors without exhausting slot density
• Memory Speed: DDR5-5600 MT/s at JEDEC specification, delivering approximately 448 GB/s per-socket bandwidth on Xeon Scalable systems
• CAS Latency: 16 tCK, providing predictable access latency for latency-sensitive workloads such as in-memory databases and real-time analytics
• Voltage: 1.1V operation reduces power per-module and simplifies thermal budgeting in dense deployments
• Rank Configuration: 2Rx8 dual-rank topology improves memory access parallelism for workloads with scattered or burst-heavy access patterns
• Temperature Range: 0°C to 95°C commercial specification supports standard data-centre cooling strategies without de-rating performance
• Part Number: HMCGY8MGBRB ensures unambiguous ordering and OEM cross-reference; always verify against system QVL before procurement

Omnixon Global distributes the SK Hynix HMCGY8MGBRB throughout the UAE, GCC region, and into Asia and European markets, serving integrators, resellers, and end-user organisations building or refreshing infrastructure. We hold stock of qualified memory modules and work directly with procurement teams to validate compatibility before dispatch, reducing deployment risk and timeline uncertainty. To discuss volume pricing, lead times, or technical clarification on this SK Hynix part, please submit a request for quotation through our platform or contact our sales engineering team—we operate from Dubai with same-region support and fulfillment capabilities.