Kingston 64GB DDR5 6400MT/s ECC Registered DIMM 2Rx4 Server RAM KSM64RS2BD4-64MH

Brand: Kingston | Category: Memory (RAM)

SKU: KSM64RS2BD4-64MH | Part #: KSM64RS2BD4-64MH | MPN: KSM64RS2BD4-64MH

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Product Overview

The Kingston Server Premier DDR5 64GB 6400MT/s ECC Registered DIMM (2Rx4, CL52) represents the leading edge of enterprise server memory technology. Engineered specifically for data-centre-grade reliability and throughput, this module leverages the DDR5 architecture's inherent advances in speed, power efficiency, and on-die error correction to deliver a significant generational leap over DDR4 platforms. Built on Micron H-die silicon — one of the most respected DRAM substrates in enterprise computing — this Kingston module is purpose-built for organisations that cannot afford downtime, data corruption, or performance bottlenecks in their mission-critical infrastructure.

As enterprises accelerate their adoption of AI/ML inference pipelines, multi-tenant virtualisation platforms, in-memory databases, and real-time analytics, the memory subsystem has become one of the primary performance determinants in modern server design. DDR5-6400 operates at nearly double the peak bandwidth of DDR4-3200, unlocking new levels of CPU utilisation and reducing memory-bound latency across the most demanding enterprise applications. The KSM64RS2BD4-64MH is the answer for IT architects who refuse to compromise on throughput, capacity, or long-term platform stability.

Key Features & Benefits

• DDR5-6400 Speed Grade: Operating at 6400 MT/s, this module delivers exceptional memory bandwidth — critical for feeding today's multi-core server CPUs such as Intel Xeon Scalable (Sapphire Rapids, Emerald Rapids) and AMD EPYC Genoa — ensuring compute cores are never starved of data.
• 64GB High-Density Capacity: A single module delivers 64GB of addressable server memory, enabling administrators to build high-capacity memory configurations within standard DIMM slot constraints, reducing the number of modules needed and lowering total system complexity.
• ECC (Error-Correcting Code) Protection: Registered ECC memory detects and corrects single-bit errors in real time, preventing data corruption that could lead to application crashes, data loss, or unplanned downtime — an absolute requirement in production enterprise environments.
• Registered (RDIMM) Architecture: The on-module register chip buffers the command and address signals between the CPU memory controller and the DRAM ICs, enabling larger memory configurations and improving signal integrity at high speeds, particularly in multi-DIMM-per-channel configurations.
• 2Rx4 Dual-Rank Organisation: The dual-rank, x4 organisation maximises memory density and bandwidth by enabling rank interleaving, which allows the memory controller to pipeline accesses across two independent ranks, reducing effective latency and improving sustained throughput.
• Micron H-Die Silicon: Sourced from Micron — a tier-one DRAM manufacturer — the H-die substrate ensures consistent manufacturing quality, tight parametric tolerances, and long-term reliability under enterprise thermal and electrical stress conditions.
• On-Die ECC (ODECC): DDR5 introduces on-die ECC as a native feature at the silicon level, providing an additional layer of error detection and correction within the DRAM die itself before data even reaches the system-level ECC engine, further strengthening data integrity.
• Kingston Server Premier Validation: Each module undergoes extensive compatibility testing against major server OEM platforms and is supported by Kingston's enterprise-grade quality assurance processes, reducing integration risk and simplifying procurement for enterprise IT teams.

Technical Architecture

The KSM64RS2BD4-64MH is designed around the JEDEC DDR5 standard, which introduces a fundamentally redesigned electrical and logical architecture compared to DDR4. At the physical level, DDR5 DIMMs operate on a split 32-bit bus (two independent 32-bit sub-channels per 64-bit channel), which improves burst efficiency and reduces the overhead associated with row activations, resulting in higher effective bandwidth even at equivalent clock frequencies.

The module operates at a nominal voltage of 1.1V — lower than DDR4's 1.2V — which, combined with improved power management ICs (PMICs) now integrated directly on the DIMM, enables more precise per-module voltage regulation and reduces overall system power consumption. This is particularly significant in high-density memory configurations where power budget constraints are a real architectural concern.

The Registered DIMM topology employs a Register Control Device (RCD) that decouples the CPU memory controller from the DRAM load, allowing the memory controller to drive a single electrical load regardless of how many DRAM chips are populated on the module. This is what enables multi-rank, high-density configurations to function reliably at DDR5-6400 speeds. The 2Rx4 configuration means there are two ranks of DRAM devices, each using x4-width (4-bit wide) DRAM packages, maximising density per module while maintaining the signal integrity benefits of the registered architecture.

CL52 (CAS Latency 52) at 6400 MT/s equates to an absolute latency of approximately 16.25 nanoseconds — highly competitive for this speed grade and well within the operating parameters expected by JEDEC-compliant server platforms targeting DDR5-6400.

Performance & Capacity

At 6400 MT/s, a single DDR5 channel populated with this module delivers a theoretical peak bandwidth of approximately 51.2 GB/s. In a dual-channel configuration — standard across most modern server sockets — this scales to over 102 GB/s of raw memory bandwidth per socket, a significant advantage for memory-bandwidth-bound workloads such as large language model (LLM) inference, real-time streaming analytics, and high-performance computing (HPC) simulations.

With 64GB per DIMM, a two-socket server platform supporting 32 DIMM slots can accommodate up to 2TB of total system memory using this module — sufficient for in-memory databases such as SAP HANA, Redis Enterprise, or Oracle TimesTen, as well as large-scale virtualisation hosts running hundreds of concurrent VMs. The combination of density and bandwidth makes this module exceptionally well-suited for workloads where both capacity and throughput must scale simultaneously.

The dual-rank architecture enables rank interleaving at the memory controller level, which effectively hides DRAM row precharge and activation latencies by pipelining accesses between ranks. In sustained, sequential workloads, this can improve effective utilised bandwidth by 10–20% compared to single-rank configurations at equivalent clock speeds.

Compatibility & Integration

The KSM64RS2BD4-64MH is designed for compatibility with server platforms based on Intel Xeon Scalable processors (4th generation Sapphire Rapids and 5th generation Emerald Rapids) that support DDR5 RDIMM at 6400 MT/s, as well as AMD EPYC Genoa (9004 series) and subsequent EPYC generations with DDR5 RDIMM support. It conforms to JEDEC standards for DDR5 Registered DIMMs and carries an SPD (Serial Presence Detect) EEPROM programmed with JEDEC-standard timing tables to enable plug-and-play compatibility with compliant server platforms.

Supported server OEM platforms typically include Dell PowerEdge (R760, R960, and related DDR5-capable models), HPE ProLiant (DL380 Gen11, DL560 Gen11), Lenovo ThinkSystem, Supermicro H13 platform servers, and Inspur/H3C DDR5-based server configurations. Kingston's Server Premier line is validated against a broad matrix of server motherboards; buyers should confirm specific platform compatibility via Kingston's online configurator or platform QVL documentation.

• JEDEC DDR5 RDIMM standard compliant
• 288-pin DIMM form factor
• ECC Registered (RDIMM) — not compatible with unbuffered (UDIMM) or LRDIMM-only slots
• Intel Xeon Scalable (4th/5th Gen) and AMD EPYC Genoa DDR5 platforms
• RoHS compliant for environmentally responsible procurement

Ideal Use Cases

• AI & Machine Learning Inference: LLM inference and AI model serving require massive, fast memory to hold model weights in-flight. DDR5-6400 bandwidth directly accelerates token generation throughput on CPU-based inference nodes and memory-coupled GPU platforms.
• High-Density Server Virtualisation: VMware vSphere, Microsoft Hyper-V, and Red Hat OpenShift environments benefit from 64GB DIMMs to maximise VM density per host, reducing per-VM memory cost and improving consolidation ratios.
• In-Memory Databases & OLTP: SAP HANA, Oracle In-Memory, and Redis Enterprise require large, fast, reliable memory pools. ECC protection and 6400 MT/s bandwidth ensure transactional integrity and query performance at scale.
• Real-Time Analytics & OLAP: High-speed analytics platforms such as ClickHouse, Vertica, and Apache Spark benefit from the high read bandwidth of DDR5-6400 to accelerate columnar scans and aggregation queries over large in-memory datasets.
• HPC & Scientific Computing: Weather simulation, computational fluid dynamics, and genomics pipelines are classically memory-bandwidth-bound. DDR5-6400 RDIMMs provide the bandwidth headroom to keep multi-core HPC processors fully utilised.
• Cloud & Managed Service Provider Infrastructure: MSPs and hyperscale operators building multi-tenant IaaS platforms require high-density, reliable memory to deliver SLA-guaranteed performance across diverse tenant workloads simultaneously.
• Enterprise ERP & Business Applications: Large-scale SAP S/4HANA, Oracle E-Business Suite, and Microsoft Dynamics deployments running on dedicated server infrastructure demand both capacity and reliability — both delivered by this Kingston DDR5 RDIMM.

Why Buy from Omnixon

Omnixon Global is a trusted B2B IT hardware distributor headquartered in Dubai, UAE, with deep supply chain relationships and local stock availability across the GCC region. Enterprise buyers in Saudi Arabia, the UAE, Kuwait, Qatar, Bahrain, Oman, and beyond benefit from Omnixon's regional presence, which eliminates long international shipping lead times and reduces customs complexity. Our team of enterprise hardware specialists understands the specific procurement, integration, and compliance requirements of data-centre operators, system integrators, and IT departments across the Middle East. When you source Kingston Server Premier memory through Omnixon, you receive genuine, factory-sealed product with full traceability, backed by knowledgeable pre-sales support to verify platform compatibility and configuration requirements before you commit. Omnixon's procurement process is designed for enterprise clients who require accurate documentation, competitive volume pricing, and the assurance that every component delivered is authentic and fit for purpose in production environments.

Related Products & Ecosystem

Building a complete, high-performance server memory infrastructure often requires complementary hardware. Omnixon stocks a broad ecosystem of enterprise IT products that pair naturally with DDR5 server memory, including next-generation Intel Xeon Scalable and AMD EPYC processors (CPUs), DDR5-ready enterprise server platforms from Dell, HPE, Supermicro, and Lenovo, enterprise NVMe SSDs for high-speed storage tiering, and GPU accelerators for AI/ML workloads that depend on fast CPU memory as a staging and transfer buffer. Additionally, KVM switches, server rack enclosures, rack PDUs, and UPS systems are available to complete your data-centre build. Contact Omnixon's enterprise sales team to discuss full rack-level configurations, memory upgrade programmes, or bulk procurement requirements tailored to your specific infrastructure roadmap.