SK Hynix 32GB DDR5-5600 RDIMM PC5-44800R Dual Rank x8 Module

Brand: SK Hynix | Category: Memory (RAM)

SKU: SK -HMCG88AGBRA | Part #: HMCG88AGBRA | MPN: HMCG88AGBRA

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A modern data centre housing dual-socket EPYC or Xeon servers can accommodate up to 12 RDIMM modules per system, which means each server can reach 384GB of total installed memory when populated with SK Hynix 32GB DDR5-5600 modules. That capacity ceiling matters when you're architecting infrastructure for AI workloads, large-scale databases, or virtualisation farms where memory density directly impacts per-rack performance and cost efficiency. The HMCG88AGBRA is SK Hynix's answer to enterprises that need to push memory throughput without sacrificing the reliability that registered DIMMs provide in mission-critical environments.

SK Hynix has engineered this module around DDR5 technology at 5600MT/s, which represents a significant generational leap from DDR4 in terms of both bandwidth and power efficiency. The PC5-44800R designation confirms you're looking at 44.8GB/s of theoretical maximum bandwidth per module, and when you're running 12 of these in parallel across a server's memory channels, the aggregate throughput becomes substantial enough to keep demanding workloads fed. The CAS latency sits at CL46, which is typical for DDR5 operating at this speed class and reflects the architectural trade-offs SK Hynix made to achieve the higher frequency while maintaining signal integrity. What sets this apart is the 1.1V operating voltage—lower than typical DDR4 requirements—which contributes to the thermal efficiency story, particularly important in densely populated server racks where every watt of power consumption translates to cooling overhead.

The dual rank, times 8 configuration (2Rx8) tells you this module is built for systems that benefit from rank interleaving and the performance optimisations that come with it. Registered signal processing means address and command signals are buffered before reaching the memory chips, a design choice that reduces electrical load on the controller and enables the greater module counts per channel that data-centre architects depend on. SK Hynix positioned this module specifically for platforms that demand ECC (error-correcting code) functionality—something non-negotiable in enterprise deployments where data corruption, even at the bit level, can cascade into system failures or data integrity issues that cost far more than the hardware itself. Your infrastructure team—whether that's the memory architect planning capacity, the storage engineer validating performance characteristics, or the AI infrastructure team sizing GPU cluster memory—will appreciate that ECC protection is baked in from the factory.

Part number HMCG88AGBRA is the specific SKU you'll reference when cross-checking compatibility matrices, placing orders, or troubleshooting firmware updates with SK Hynix support. The RDIMM form factor itself carries implications: these modules are longer and heavier than consumer SO-DIMMs, they require specific server slots with appropriate connector spacing, and they're not interchangeable with unbuffered designs. SK Hynix manufactures these to JEDEC DDR5 specifications, which means they should work across the majority of enterprise server platforms from 2023 onward—though validation against your specific hardware configuration remains essential before deployment at scale. The part number HMCG88AGBRA should appear in your bill of materials, your asset tracking database, and your warranty documentation; it's the thread you pull when you need to escalate a memory-related support case or plan a refresh cycle across a server cohort.

The 32GB capacity point has emerged as the sweet spot for many enterprises building out new infrastructure. It sits between the undersized 16GB modules that force higher module counts for the same capacity and the 64GB or 128GB modules that overkill most workload profiles. SK Hynix's implementation at this density means you can achieve full memory capacity in fewer DIMM slots than you might have expected, leaving room for future upgrades or reducing the overall module count per server if your workloads are lighter. For organisations running virtualisation layers, containerised applications, or databases that benefit from larger buffer pools, this capacity unlocks configurations that simply weren't practical at the DDR4 generation. The HMCG88AGBRA strikes that balance: dense enough to reduce complexity, standards-aligned enough to avoid lock-in, and covered by ECC protection that keeps you sleeping at night.

DDR5 Module Specifications & Electrical Characteristics

• Capacity: 32GB per RDIMM module with 12-module per-server maximum enabling 384GB total system memory
• Memory speed: DDR5-5600 (5600MT/s) with PC5-44800R bandwidth rating and CL46 latency profile
• Error correction: Full ECC support for single-bit error detection and multi-bit error correction in mission-critical environments
• Power efficiency: 1.1V nominal operating voltage reducing thermal load compared to prior DDR generations
• Signal architecture: Registered (buffered) design with 2Rx8 rank configuration optimising controller load and enabling high-density deployments
• Platform alignment: JEDEC DDR5 compliance for compatibility with EPYC 9004-series, Intel Xeon Scalable (4th Gen and later), and ARM-based server platforms
• Physical format: 288-pin RDIMM module with ECC parity chips and power delivery decoupling suitable for data-centre thermal and mechanical environments

Omnixon Global stocks the SK Hynix HMCG88AGBRA and maintains relationships with authorised distributors across the UAE, GCC, and Asia-Pacific regions. Whether you're outfitting a new data-centre build, refreshing memory in an AI training cluster, or planning a scalable infrastructure for a growing enterprise workload, we can support your procurement, provide technical cross-reference documentation, and arrange bulk ordering for delivery to your facilities in Dubai, Abu Dhabi, or beyond. Contact us with your quantity requirements, delivery timeline, and any compatibility questions; we'll provide a tailored RFQ and connect you with the right technical resources to validate your deployment plan.