Kingston Server Premier DDR5-4800 32GB RDIMM ECC Registered CL40 1Rx4 288-Pin

Brand: Kingston | Category: Memory (RAM)

SKU: KSM4R5280B-32MH | Part #: KSM4R5280B-32MH | MPN: KSM4R5280B-32MH

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Product Overview

The Kingston Server Premier DDR5-4800 32GB Registered ECC DIMM (KSM4R5280B-32MH) represents the next generation of enterprise server memory, purpose-built for organisations that cannot afford downtime or data integrity failures. As businesses accelerate their digital transformation initiatives—from AI and machine learning workloads to real-time analytics and high-density virtualisation—the memory subsystem has become one of the most critical performance bottlenecks in modern server infrastructure. Kingston's Server Premier line addresses this challenge head-on by delivering DDR5's inherent architectural advantages: wider internal bus widths, on-die ECC, improved power efficiency, and higher data transfer rates compared to the outgoing DDR4 standard.

Carrying Kingston's longstanding reputation for stringent validation and enterprise reliability, the KSM4R5280B-32MH is manufactured using premium-grade DRAM components and undergoes exhaustive compatibility testing against the industry's leading server platforms. This module is ideal for IT directors, system architects, and procurement professionals across the GCC region who demand server memory that performs consistently at scale, from a single-server edge deployment to a fully populated multi-socket data centre rack.

Key Features & Benefits

• DDR5-4800 Speed: Operates at 4800 MT/s, delivering approximately 38.4 GB/s of theoretical peak bandwidth per module—a significant leap over DDR4-3200's 25.6 GB/s ceiling, enabling faster data movement between CPU cores and memory.
• 32GB High-Density Capacity: Each module provides 32 gigabytes of addressable memory, allowing system architects to build high-capacity memory configurations while using fewer DIMMs per channel, reducing thermal load and simplifying cabling in dense rack deployments.
• ECC (Error-Correcting Code) Protection: Hardware-level single-bit error correction and multi-bit error detection safeguard data integrity in 24/7 server environments, making this module fully compliant with enterprise reliability requirements for financial systems, healthcare databases, and government IT.
• Registered (RDIMM) Architecture: The registered buffer on this DIMM reduces the electrical load on the memory controller, enabling higher DIMM counts per channel without signal integrity degradation—critical for maxing out memory capacity in multi-socket server builds.
• On-Die ECC (ODECC): DDR5 introduces on-die ECC as a native feature at the DRAM chip level, providing an additional layer of error correction before data even reaches the memory controller, substantially improving baseline reliability over DDR4.
• Improved Power Efficiency: DDR5 operates at a native voltage of 1.1V compared to DDR4's 1.2V, reducing per-module power consumption and contributing to lower overall rack PUE (Power Usage Effectiveness) in energy-conscious data centre environments.
• 1Rx4 Configuration: Single-rank, x4 organisation provides balanced performance and density, with x4 chip width offering enhanced RAS (Reliability, Availability, Serviceability) features including SDDC (Single Device Data Correction) for improved fault tolerance.
• Kingston Server Premier Validation: Each module is tested against a comprehensive matrix of server platforms and BIOS versions, backed by Kingston's dedicated server memory engineering team to ensure plug-and-play compatibility without requiring manual frequency adjustments.

Technical Architecture

The KSM4R5280B-32MH is built on the DDR5 JEDEC standard, which introduces fundamental architectural changes compared to its predecessor. Unlike DDR4, which uses a single 72-bit wide bus per DIMM, DDR5 splits the interface into two independent 32-bit subchannels (plus ECC bits), effectively doubling the command/address bandwidth and improving memory access granularity. This subchannel architecture reduces latency for small random accesses—a critical advantage for database and OLTP workloads.

The module integrates a Register Clock Driver (RCD) that buffers command, address, and control signals between the memory controller and the DRAM chips. This buffering is what defines the RDIMM form factor, and it is essential for maintaining signal integrity in systems populated with multiple DIMMs per channel. The RCD in DDR5 RDIMMs also incorporates additional features such as Error Checking on the command/address bus, further hardening the memory subsystem against soft errors.

Power management has been redesigned in DDR5 with the introduction of an onboard Power Management IC (PMIC). Rather than relying entirely on the motherboard's voltage regulation circuitry, the PMIC on the DIMM itself conditions and regulates the voltages supplied to the DRAM chips. This improves power delivery accuracy, reduces noise, and allows for more consistent performance across varying load conditions.

The 288-pin DDR5 connector is physically incompatible with DDR4 slots, ensuring no accidental misinstallation. The module conforms to the standard RDIMM form factor dimensions and is designed for installation in servers with DDR5-capable memory slots.

Performance & Capacity

At DDR5-4800 with CL40-39-39 primary timings, the KSM4R5280B-32MH delivers sustained memory bandwidth that dramatically benefits workloads with high data streaming requirements. In dual-channel configurations (two modules per CPU), peak aggregate bandwidth reaches approximately 76.8 GB/s per processor socket. In platforms supporting quad-channel or octa-channel memory (common in multi-socket Xeon Scalable and EPYC server architectures), total system bandwidth scales proportionally, supporting memory-intensive applications such as in-memory databases, large-scale data analytics, and AI inference engines.

The 32GB per-DIMM density allows a standard dual-socket server with eight DIMM slots per CPU (16 total) to reach 512GB of total system memory using this module alone—sufficient for large SAP HANA in-memory database instances, high-VM-count virtualisation hosts, or genomics workloads requiring entire datasets to reside in RAM. The 1Rx4 organisation ensures that SDDC protection is active, providing hardware-assisted fault recovery without performance penalty.

Compatibility & Integration

The KSM4R5280B-32MH is designed for use in servers based on Intel's 4th Generation Xeon Scalable processors (Sapphire Rapids) and AMD EPYC 9004 Series processors (Genoa), both of which natively support DDR5 memory channels. Kingston maintains an actively updated compatibility list (HCL) covering major OEM platforms including systems from HPE (ProLiant Gen11), Dell Technologies (PowerEdge 16G), Lenovo (ThinkSystem V3), Supermicro, and others.

• JEDEC DDR5 RDIMM standard compliant
• Compatible with Intel Xeon Scalable 4th Gen (Sapphire Rapids) platforms
• Compatible with AMD EPYC 9004 Series (Genoa) platforms
• Supports JEDEC SPD (Serial Presence Detect) for automatic BIOS configuration
• RoHS compliant for environmental regulatory adherence across EU and GCC jurisdictions
• Validated for major hypervisors including VMware vSphere 8, Microsoft Hyper-V, and Red Hat KVM

Ideal Use Cases

• AI & Machine Learning Inference: AI inference servers require rapid, high-bandwidth memory access to load large language models and neural network weights. DDR5-4800 bandwidth reduces memory bottlenecks during batch inference, improving token throughput on CPU-based or accelerator-assisted AI platforms.
• High-Density Server Virtualisation: Deploying 50 to 100+ virtual machines per host demands maximum per-socket memory capacity. The 32GB RDIMM enables administrators to fully populate server memory slots, achieving 512GB or more per socket on supported platforms without sacrificing ECC protection.
• In-Memory Databases (SAP HANA, Redis, VoltDB): Workloads that pin entire datasets in RAM for sub-millisecond query response times benefit directly from higher DDR5 bandwidth and the improved subchannel architecture, reducing query latency and increasing transaction throughput.
• OLAP & Data Warehousing: Business intelligence platforms executing complex analytical queries across terabytes of data rely on sustained memory bandwidth. DDR5-4800's improved throughput over DDR4 accelerates columnar scans and aggregation operations in platforms such as ClickHouse, Snowflake on-premises, and Oracle Exadata.
• Cloud-Native & Containerised Workloads: Kubernetes clusters and container orchestration platforms benefit from large memory pools that allow higher pod densities per physical node, reducing infrastructure footprint and licensing costs while maintaining application performance SLAs.
• High-Performance Computing (HPC) & Scientific Simulation: Computational fluid dynamics, molecular dynamics, and finite element analysis workloads exhibit strong memory bandwidth sensitivity. DDR5-4800 provides the memory subsystem performance required for these simulation-heavy environments in research institutions and engineering organisations across the region.
• Enterprise Storage Controllers & Caching Layers: Software-defined storage platforms and NVMe-oF storage controllers use large DRAM pools as write caches and metadata stores. High-capacity DDR5 RDIMMs enable larger cache pools that improve storage tiering efficiency and reduce NVMe SSD write amplification.

Why Buy from Omnixon

Omnixon Global is a specialist B2B IT hardware distributor headquartered in Dubai, UAE, with deep expertise in enterprise memory, server components, and data centre infrastructure for clients across the GCC, Middle East, Africa, and global markets. When you source Kingston Server Premier DDR5 memory through Omnixon, you benefit from locally held inventory in the UAE, eliminating the extended lead times associated with direct manufacturer procurement or international freight consolidators. Our enterprise sales team includes certified hardware specialists who can assist with memory configuration planning, platform compatibility validation, and multi-unit procurement structuring tailored to your organisation's technical requirements. Omnixon serves government entities, hyperscale operators, managed service providers, system integrators, and enterprise IT departments, providing the account management continuity and technical pre-sales depth that commodity resellers cannot match. All products are sourced through authorised supply channels, ensuring full authenticity and traceability for audit-sensitive procurement environments.

Related Products & Ecosystem

To build a complete, optimised DDR5 server memory configuration, consider exploring Omnixon's broader portfolio of complementary products. Pairing DDR5 RDIMMs with high-performance NVMe enterprise SSDs accelerates storage-intensive workloads that overflow from memory to fast persistent storage tiers. For platforms requiring additional processing power, Omnixon stocks Intel Xeon Scalable and AMD EPYC CPUs that are validated for DDR5 memory channels. Enterprise server platforms from HPE, Dell, Lenovo, and Supermicro capable of accepting DDR5 RDIMMs are available through our Servers category. Power protection infrastructure including UPS systems and rack PDUs ensures your memory investment is protected from power quality events. Network adapters and high-speed interconnects complete the server build, enabling the memory bandwidth delivered by DDR5 to be matched with equivalent I/O throughput at the network edge.