M393A8K40B22-CWD Samsung 1x64GB DDR4 RDIMM ECC RAM

High-Performance DDR4 ECC RDIMM Capacity Expansion with the M393A8K40B22-CWD

The M393A8K40B22-CWD is a 64GB DDR4-2666 ECC Registered DIMM engineered for enterprise server platforms that require predictable memory behavior under sustained load. By adding high per-DIMM capacity within JEDEC-defined DDR4 operating parameters, the M393A8K40B22-CWD helps increase VM density and reduce memory pressure without changing the underlying CPU generation or socket platform.

Designed as a 288-pin, 1.2V RDIMM, the M393A8K40B22-CWD uses registered buffering to improve signal integrity and scalability across multi-DIMM-per-channel configurations common in dual-socket and multi-socket systems. Its ECC data path supports protection against single-bit errors, while the quad-rank x4 architecture targets stable throughput for virtualization, database caching, and analytics working sets that benefit from larger in-memory footprints. As a memory upgrade, it complements PCIe and storage expansion by removing DRAM as the bottleneck for I/O-heavy workloads and CPU consolidation strategies.

Why Choose the M393A8K40B22-CWD?

The M393A8K40B22-CWD delivers a practical density-to-reliability profile for IT teams standardizing on DDR4-2666 RDIMM platforms, enabling scalable memory growth per node with consistent timing behavior and enterprise-grade error management. Deploying the M393A8K40B22-CWD supports straightforward capacity planning across clustered hosts, helping maintain performance determinism as virtualization ratios, in-memory databases, and analytics pipelines scale.

Samsung designs server DRAM with a focus on qualification discipline, electrical margin, and lifecycle consistency aligned to modern data center requirements. The module is server-qualified and built to integrate cleanly into validated platform matrices, supporting operational stability and change-control processes in enterprise environments.

Key Applications:

• Virtualization and cloud host memory expansion
• In-memory databases and caching tiers
• Enterprise analytics and ETL processing
• VDI density optimization

At Happyware - Server Hardware you benefit from non-binding offers tailored precisely to your rollout plans for M393A8K40B22-CWD upgrades, and can secure bulk order discount options for standardized fleet deployments across racks, clusters, or multi-site environments.