Micron DDR5 RDIMM 32GB 2Rx8 6400MT/s CL52 16Gbit ECC Registered Server Memory Tray

Brand: Micron | Category: Memory (RAM)

SKU: MTC20F208S51RC64BH1 | Part #: MTC20F208S51RC64BH1

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Product Overview

The Micron DDR5 RDIMM 32GB 2Rx8 6400MT/s CL52 (16Gbit) is a next-generation registered ECC server memory module purpose-built for demanding enterprise compute environments. Operating at 6400 megatransfers per second, this module represents the leading edge of DDR5 performance available in a standard RDIMM form factor, delivering significantly higher bandwidth and improved power efficiency over its DDR4 predecessors. Supplied in tray packaging, it is the preferred procurement format for data centre operators, system integrators, and IT resellers who deploy memory at scale.

Micron Technology, one of only a handful of companies that manufactures its own DRAM silicon, engineers this module from the ground up — from the 16Gbit die to the finished RDIMM — ensuring tightly controlled quality, validated signal integrity, and long-term supply consistency. For enterprise buyers across the GCC, MENA, and global markets, this translates directly into predictable performance, reduced unplanned downtime, and confidence in component provenance.

The move from DDR4 to DDR5 is not merely incremental. DDR5 introduces on-die ECC at the DRAM level, power management integrated directly into the DIMM, and a doubled burst length that maximises memory bus utilisation. At 6400MT/s, this specific module sits at the high end of the DDR5 speed spectrum, making it an ideal choice for latency-sensitive workloads such as in-memory databases, real-time analytics, AI inferencing, and virtualisation hosts running dense VM stacks.

Key Features & Benefits

• 6400MT/s Transfer Rate: Delivers up to 51.2 GB/s of theoretical peak bandwidth per module, enabling CPUs to feed data-hungry workloads without memory becoming the bottleneck.
• 32GB Capacity in 2Rx8 Configuration: The dual-rank, x8 organisation provides a balanced combination of density and signal resilience, maximising addressable memory per channel while maintaining compatibility across a broad server ecosystem.
• 16Gbit Die Technology: Higher-density DRAM dies mean fewer components on the PCB, improved thermal characteristics, and a direct path to greater capacity per slot as platform generations mature.
• On-Die ECC (ODECC): DDR5 mandates on-die error correction at the DRAM level, catching single-bit errors within the die itself before data even reaches the memory controller — adding a first layer of protection on top of the RDIMM's system-level ECC.
• Registered (RDIMM) Architecture: The registered command/address bus isolates the memory controller from the electrical load of the DRAM array, enabling higher module counts per channel and greater system stability in multi-DIMM configurations.
• Integrated Power Management IC (PMIC): DDR5 moves voltage regulation onto the module itself, reducing motherboard design complexity, improving power delivery accuracy, and enabling more granular power state management for energy-efficient data centre operations.
• Tray Packaging for Scale Deployment: Supplied without individual retail boxes, tray format modules reduce packaging waste and simplify high-volume installation workflows in rack-and-stack data centre environments.
• Micron Silicon Provenance: Manufactured on Micron's own advanced DRAM process nodes, ensuring consistent die quality, rigorous qualification testing, and a traceable, conflict-free supply chain.

Technical Architecture

At its core, the MTC20F208S51RC64BH1 uses 16Gbit (2GB) DDR5 SDRAM dies arranged in a dual-rank, x8 topology across both sides of the printed circuit board. The 2Rx8 designation means there are two independently addressable ranks, each comprising x8-wide DRAM devices. This architecture achieves 32GB total capacity while keeping the data bus width per rank at a manageable level, preserving signal integrity at 6400MT/s speeds.

The RDIMM register (RCD) buffers the command, address, and control signals between the host memory controller and the DRAM devices. This buffering is essential at high speeds and high slot counts — without it, the electrical load presented to the CPU's memory controller would degrade signal margins and force speed downgrades. The register also enables advanced features such as address mirroring and parity checking on the command/address bus, further hardening the memory subsystem against soft errors.

DDR5's architectural shift to a dual 32-bit sub-channel design (rather than DDR4's single 64-bit channel) means each module effectively presents two independent 40-bit channels (32 data + 8 ECC bits each) to the memory controller. This doubles the number of refresh and access operations that can be interleaved, improving effective bandwidth utilisation under mixed read/write workloads typical of database and virtualisation scenarios.

The integrated PMIC on DDR5 RDIMMs receives 12V from the server's power delivery network and steps it down to the precise voltages required by the DRAM array (VDD/VDDQ at 1.1V) and the register. This centralises power conversion and eliminates the tolerance stacking that occurs when relying solely on motherboard power planes, resulting in cleaner, more stable power delivery directly at the point of load.

Performance & Capacity

Running at 6400MT/s with a CAS latency of CL52, this module achieves a true latency (tCL) of approximately 16.25 nanoseconds — comparable in absolute terms to high-speed DDR4 modules while delivering substantially greater bandwidth. Peak theoretical bandwidth per module reaches 51.2 GB/s, and in a dual-channel or quad-channel server configuration (as found in current-generation Intel Xeon Scalable and AMD EPYC platforms), aggregate memory bandwidth can exceed 200 GB/s per socket.

For workloads such as SAP HANA, Oracle In-Memory Database, Redis, or Apache Spark running large datasets in RAM, the combination of 6400MT/s speed and 32GB capacity per slot directly translates into faster query completion times, higher transaction throughput, and the ability to hold larger working sets in memory — reducing reliance on slower NVMe or SAN storage tiers.

In virtualisation environments running VMware vSphere, Microsoft Hyper-V, or KVM-based hypervisors, higher memory bandwidth reduces the time spent on VM memory balloon operations, live migration transfers, and transparent page sharing scans, all of which improve VM consolidation ratios and reduce host-to-host migration windows during maintenance events.

Compatibility & Integration

This DDR5 RDIMM is designed for compatibility with server platforms based on Intel 4th and 5th Generation Xeon Scalable processors (Sapphire Rapids and Emerald Rapids) and AMD EPYC 4th Generation (Genoa) and 5th Generation (Turin) processors, all of which natively support DDR5 memory channels. Supported motherboard and server platforms include those from Dell (PowerEdge R760, R860, R960 series), HPE (ProLiant DL380 Gen11, DL560 Gen11), Lenovo (ThinkSystem SR650 V3, SR850 V3), Supermicro H13 series, and compatible OEM platforms from Inspur, H3C, and Huawei.

The module complies with JEDEC DDR5 SDRAM standards (JESD79-5) and DDR5 Registered DIMM standards (JESD21C annex L). It carries standard SPD (Serial Presence Detect) and EEPROM data readable by BIOS/UEFI during POST, ensuring plug-and-play initialisation on compliant platforms. ECC functionality is supported natively by the host memory controller in conjunction with the module's ECC bits, meeting the requirements of enterprise operating environments running Windows Server, Red Hat Enterprise Linux, SUSE Linux Enterprise Server, Ubuntu Server, and VMware ESXi.

Ideal Use Cases

• AI & Machine Learning Inference Servers: Large language model inference and deep learning inference pipelines require rapid, high-bandwidth access to model weights and activation tensors held in system DRAM. High-speed DDR5 RDIMMs reduce the time CPUs and accelerators spend waiting on memory fetches.
• In-Memory Database & OLAP Platforms: Systems running SAP HANA, Oracle TimesTen, MemSQL, or Aerospike benefit directly from maximum memory bandwidth and large per-socket capacity, enabling entire working datasets to reside in RAM for microsecond-latency query responses.
• High-Density Virtualisation Hosts: Hypervisors managing 50–150+ VMs per host require both high capacity and high bandwidth to service concurrent memory requests without latency spikes. DDR5 at 6400MT/s significantly reduces memory subsystem contention.
• High-Performance Computing (HPC) Clusters: Computational fluid dynamics, molecular dynamics, financial Monte Carlo simulations, and genomics pipelines are all bandwidth-sensitive. Maximising memory speed directly improves job throughput and reduces cluster time-to-result.
• Real-Time Analytics & Streaming Data Platforms: Apache Flink, Apache Kafka Streams, and ClickHouse deployments processing high-velocity data streams benefit from memory subsystems capable of sustaining high read/write bandwidth without becoming the bottleneck in the data pipeline.
• Cloud & Colocation Infrastructure Buildouts: Cloud service providers and colocation operators building out new compute racks targeting AMD EPYC or Intel Xeon Scalable platforms will find 6400MT/s DDR5 RDIMMs essential to maximising the compute-to-memory bandwidth ratio specified by their SLA commitments.
• Enterprise ERP & CRM Server Refresh: Organisations upgrading SAP, Oracle ERP, or Salesforce on-premise infrastructure to next-generation server platforms will require DDR5 RDIMMs to populate new slots and unlock the full performance headroom of their new Xeon or EPYC processors.

Why Buy from Omnixon

Omnixon Global is a trusted B2B IT hardware distributor headquartered in Dubai, UAE, with deep expertise in sourcing and supplying enterprise-grade components to clients across the GCC, MENA, and international markets. Our Dubai-based inventory and regional logistics network mean that enterprise clients in Saudi Arabia, Qatar, Kuwait, Bahrain, Oman, and the UAE can access critical hardware such as DDR5 server memory through a reliable, regionally accountable partner. We specialise in serving data centre operators, system integrators, managed service providers, government IT departments, and enterprise procurement teams who require verified product authenticity, professional pre-sales consultation, and responsive account management. Every component we supply — including Micron memory modules — is sourced through authorised channels, ensuring genuine products with valid manufacturer provenance. Our team understands the urgency of enterprise infrastructure projects and is equipped to support bulk orders, mixed-SKU procurement, and complex bill-of-materials fulfilment across multiple hardware categories simultaneously.

Related Products & Ecosystem

Deploying DDR5 RDIMM memory at scale typically involves complementary hardware categories available through Omnixon's catalogue. Pair this memory with compatible Intel Xeon Scalable or AMD EPYC processors (CPUs) for a complete server compute upgrade. Consider enterprise NVMe SSDs for the storage tier to match the high throughput of your DDR5 memory subsystem. For the hosting infrastructure, explore our range of rack servers from Dell, HPE, Lenovo, and Supermicro that natively support DDR5. Network the compute layer with high-speed 100GbE or 400GbE network adapters and switches to ensure the fabric keeps pace with server memory bandwidth. Power and protect your infrastructure with enterprise UPS systems and rack PDUs, and manage console access through our KVM and console switch portfolio.