Kingston 256GB DDR5 Server Premier

Brand: Kingston | Category: Memory (RAM)

SKU: KSM48RS4BD8KM-256HM | Part #: KSM48RS4BD8KM-256HM | MPN: KSM48RS4BD8KM-256HM

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Kingston's 256GB DDR5 Server Premier module (part number KSM48RS4BD8KM-256HM) is engineered for Intel Xeon Scalable processors (3rd Gen and later) and AMD EPYC 9004 series platforms, where it populates single or multiple memory channels depending on your server architecture. At 4800MT/s with full JEDEC compliance, this Kingston module delivers the memory bandwidth that modern multi-socket systems demand, particularly in environments where per-socket memory capacity and throughput must scale together.

The 256GB capacity in a single RDIMM footprint means data centre infrastructure teams—typically the systems architect or storage engineer responsible for memory tiering—can reach substantial memory pools without consuming excessive physical slots. This is particularly valuable in 2-socket or 4-socket configurations where slot density matters. Kingston built this module as a registered DIMM with on-die error correction, ensuring that the integrity guarantees required in production workloads remain intact across long uptimes. The dual-rank (2Rx4) configuration optimizes channel utilization, allowing the processor to interleave requests across physical rank boundaries and reduce per-rank current draw, a thermal and reliability benefit in high-utilization scenarios.

At 1.1V operating voltage and CL40 latency with 40-39-39 timing, the KSM48RS4BD8KM-256HM strikes a practical balance between performance and stability. This voltage and latency profile reflects DDR5's inherent architecture—higher density DRAM naturally carries longer latency than earlier generations—but Kingston has validated these timings across the breadth of Xeon and EPYC platforms. The 72-bit bus width (64-bit data plus 8-bit ECC) ensures every transaction is protected; on-die ECC adds a second layer of detection and correction that catches errors before they propagate into application memory. Network engineers deploying packet processors and AI infrastructure teams running inference workloads on dense GPU clusters often specify Kingston Server Premier modules because the combination of capacity, reliability, and deterministic performance reduces the variance in system behaviour under load.

Thermal management is built into the module design: the 0°C to 85°C operating range acknowledges that data centre ambient conditions vary, and Kingston has engineered this module to remain stable and within specification even in warm-aisle deployments. The 288-pin interface is standard for DDR5 RDIMMs, ensuring physical and electrical compatibility across the widest range of qualified server platforms. Kingston's Server Premier line has been validated by both Intel and AMD; this KSM48RS4BD8KM-256HM module carries full JEDEC DDR5 standard compliance, meaning firmware updates and BIOS revisions from your OEM will continue to support it throughout its deployed lifetime.

For organisations upgrading legacy DDR4 infrastructure or building fresh memory planes for AI labs and analytics clusters, the Kingston 256GB module represents a straightforward path to DDR5 adoption without architectural compromise. Whether you are refreshing a 10-node training cluster or expanding a transactional database tier, the part number KSM48RS4BD8KM-256HM delivers verified capacity and reliability that aligns with enterprise SLA expectations.

DDR5 Performance and Platform Specifications

• Speed: 4800MT/s with CAS latency CL40 and timing 40-39-39, optimised for Intel Xeon Scalable Gen 3+ and AMD EPYC 9004 series processors
• Capacity and Form Factor: 256GB per RDIMM (Registered DIMM), dual-rank (2Rx4) configuration for balanced channel interleaving and reduced per-rank thermal load
• Error Correction: Full ECC support with on-die ECC, 72-bit bus width (64-bit data + 8-bit ECC) for transaction-level error detection and correction
• Voltage and Temperature: 1.1V operating voltage with 0°C to 85°C operating range, validated for warm-aisle and standard data centre deployments
• Electrical and Firmware Compatibility: 288-pin DDR5 RDIMM interface with full JEDEC standard compliance, ensuring OEM firmware and BIOS support across Xeon and EPYC platform roadmaps
• Part Number: KSM48RS4BD8KM-256HM—single SKU for simplified procurement and inventory management across multi-vendor server estates

Omnixon Global stocks Kingston memory modules across multiple speed and capacity points, serving data centre operators, systems integrators, and cloud-adjacent enterprises throughout the UAE, GCC, and broader Asia-Pacific regions. Our technical team validates module compatibility against your specific processor and platform configuration before shipment. For RFQ or technical consultation on DDR5 memory strategies, contact our sales and engineering teams in Dubai.