Samsung 64GB DDR5 RDIMM M321R8GA0EB2-CWM

Brand: Samsung | Category: Memory (RAM)

SKU: SAM-M321R8GA0EB2CWM | Part #: M321R8GA0EB2-CWM | MPN: M321R8GA0EB2-CWM

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Samsung's 64GB DDR5 RDIMM M321R8GA0EEB2-CWM is purpose-built for Intel Xeon Scalable processors (Sapphire Rapids generation and later) and AMD EPYC systems (Genoa and later), platforms that define modern data-centre memory infrastructure. This is a registered DIMM engineered for multi-socket server configurations where stability and error correction matter more than raw speed. The module operates at 5600 MT/s across the DDR5 PC5-44800 interface, delivering the bandwidth modern workloads expect while maintaining the lower voltage profile—1.1V—that reduces power consumption and thermal load in dense rack environments. For infrastructure teams responsible for large-scale deployments, this Samsung part number represents a straightforward, standards-compliant upgrade path.

The M321R8GA0EB2-CWM carries full ECC (Error-Correcting Code) capability with Samsung's on-die ECC implementation supported natively. This matters deeply to storage architects and systems engineers who cannot tolerate silent data corruption in mission-critical workloads. Bit errors in financial transactions, AI model training, or database integrity checks cost far more than the premium paid for ECC-enabled memory. The module includes a registered clock driver (RCD) on the substrate, which isolates memory control signals and allows servers to scale to higher module counts per channel without signal degradation. With 288 pins and a 2Rx4 rank configuration, this is a full-density, low-profile design that fits within standard server form factors without requiring custom heatsinks or accommodation trays.

Capacity sits at 64GB per DIMM, which means a dual-socket Xeon or EPYC system can address 768GB to 1.5TB of memory using just 6 to 12 modules across all channels—a density sufficient for in-memory databases, large AI inference workloads, and consolidated virtual machine hosts. The CAS latency of 46 cycles reflects DDR5's higher absolute latencies compared to DDR4, but the additional bandwidth and command scheduling overhead of registered memory in this class is a known trade-off; memory-bound applications see net improvement despite the higher CL number. Operating across a 0–85°C range, the Samsung module is rated for standard air-cooled and liquid-cooled data-centre environments alike, though passive server design typically keeps DIMM temperatures well below 70°C under normal load.

Samsung's compliance with JEDEC DDR5 specifications ensures vendor interoperability and firmware stability across OEM server designs. You are not locked into a single vendor's BIOS updates or microcode to achieve rated performance. Data-centre procurement teams and network engineers responsible for refreshing aging infrastructure will recognize this part number as a safe, widely-tested choice that avoids the risk of proprietary memory revisions or supply chain discontinuation. The M321R8GA0EB2-CWM has been qualified by Intel and AMD and appears in reference bills of materials for Xeon and EPYC platforms released from 2023 onwards.

Omnixon Global stocks the Samsung M321R8GA0EB2-CWM for immediate shipment across the UAE, GCC region, and beyond. Whether you are building a new AI lab cluster, upgrading an existing data centre, or supporting enterprise server fleets, we hold inventory and can support volume orders with competitive lead times. Contact our sales team with your memory requirements and server configurations—we will provide a detailed quotation and technical guidance on module selection for your platform.

Memory Module Specifications

• Capacity: 64GB per DIMM with 2Rx4 rank structure for high-density configurations
• Interface: DDR5 PC5-44800 at 5600 MT/s; 288-pin RDIMM connector
• Voltage & Power: 1.1V nominal with integrated voltage regulation for efficiency
• Error Correction: ECC with on-die error correction (ODECC) and registered clock driver (RCD)
• Platform Support: Intel Xeon Scalable (Sapphire Rapids+) and AMD EPYC (Genoa+)
• Form Factor: Low-profile server DIMM suitable for standard two-socket and four-socket chassis
• Thermal Range: Rated 0–85°C operating temperature; suitable for both air and liquid cooling
• Standards Compliance: JEDEC DDR5 specification; qualified by Intel and AMD