SK Hynix DDR5 48GB 4800 MT/s RDIMM

Brand: SK Hynix | Category: Memory (RAM)

SKU: HMAA6GR7AJR4N-XN | Part #: HMAA6GR7AJR4N-XN | MPN: HMAA6GR7AJR4N-XN

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SK Hynix's DDR5 48GB 4800 MT/s RDIMM represents a meaningful step forward for data centre operators managing memory-intensive workloads where both bandwidth and consistency matter. The HMAA6GR7AJR4N-XN module operates at CAS latency 40 with a power envelope of just 1.1V—a combination that matters for latency-sensitive applications like high-frequency trading systems, real-time analytics platforms, and in-memory databases where every nanosecond of delay compounds across millions of transactions. This balance between speed and thermal efficiency means your infrastructure team can achieve higher throughput without the power-density headaches that often accompany DDR5 adoption at scale.

The architecture beneath this SK Hynix part number speaks to how the vendor has matured its DDR5 manufacturing process. The 48GB capacity sits at the practical sweet spot for modern Xeon and EPYC systems—large enough to reduce the module count per server, yet small enough that dual-rank 4x4 organization maintains signal integrity across densely populated memory channels. The HMAA6GR7AJR4N-XN includes both system-level ECC and SK Hynix's on-die ECC (ODECC), which means error detection and correction happens at two layers rather than one. For infrastructure architects and storage teams evaluating platform configurations, this redundancy translates to fewer unplanned downtime events when bit flips occur—and in large deployments running 24/7, they will occur. The registered DIMM form factor (RDIMM) with its Registering Clock Driver adds negligible latency while unburdening the memory controller of direct clock distribution, a design choice that allows system integrators to populate more modules per channel without degradation.

Compatibility extends to Intel Xeon Scalable processors from Sapphire Rapids onward, and AMD's latest-generation EPYC lineup starting with Genoa. These platforms represent the current mainstream for enterprise workloads, cloud infrastructure, and AI model training pipelines. A data centre sysadmin or network infrastructure engineer selecting memory for a new rack deployment will find the HMAA6GR7AJR4N-XN immediately qualified across both major CPU families—a practical advantage when maintaining heterogeneous fleets or keeping procurement flexible. The 288-pin connector and DDR5 JEDEC compliance mean this module integrates without firmware surprises or exotic tuning; it works within standard operating parameters from day one. The 72-bit bus width (including ECC) and PC5-38400 speed rating ensure the module can feed compute-heavy applications without becoming a bottleneck, even as CPU core counts continue to climb.

SK Hynix has built its reputation on manufacturing discipline and reliable volume production, and the HMAA6GR7AJR4N-XN reflects that heritage. The module operates safely across the full industrial temperature range (0°C to 85°C), an important detail for data centre environments where cooling systems are engineered conservatively but real-world inlet temperatures can spike. The dual-rank, x4 chip organization balances power draw per module against the memory density demands of modern servers. Because these modules ship to enterprises building data lakes, machine learning inference clusters, and transactional databases, the engineering beneath the part number prioritizes stability and predictable performance over peak speeds that might only exist on a datasheet. An AI infrastructure team testing new hardware for a production training environment will appreciate that SK Hynix's approach favors long-term reliability over synthetic benchmark wins.

Omnixon Global stocks the SK Hynix DDR5 48GB 4800 MT/s RDIMM (HMAA6GR7AJR4N-XN) and maintains direct supply relationships across the GCC, Asia, and Europe. Our inventory supports rapid fulfillment for data centre builds, system integrators, and enterprises scaling infrastructure in the Middle East region. If your organisation is evaluating DDR5 memory for a new deployment or refresh cycle, we welcome technical RFQs and can facilitate testing samples and volume quotes. Contact our sales team to discuss your specific platform requirements and lead-time needs.

Performance Specifications and Platform Compatibility

• SK Hynix HMAA6GR7AJR4N-XN: DDR5 RDIMM, 48GB, 4800 MT/s, CAS Latency 40, 1.1V operating voltage
• Dual ECC protection: system-level ECC plus on-die ECC (ODECC) for enhanced reliability in mission-critical deployments
• Qualified for Intel Xeon Scalable (Sapphire Rapids and later) and AMD EPYC (Genoa and later) processors
• Registered DIMM (RDIMM) with Registering Clock Driver reduces memory controller load and supports dense module populations
• Dual-rank, x4 chip organization (2Rx4) balances capacity, power efficiency, and signal integrity across memory channels
• JEDEC DDR5 standard compliance ensures seamless integration without custom firmware or tuning requirements
• Industrial temperature range (0°C to 85°C) supports reliable operation in standard and edge data centre environments