M321RAJA0MB0-CWM Samsung 1x128GB DDR5 ECC RAM

High-Density DDR5 RDIMM ECC Server Memory featuring 5600MT/s bandwidth with the M321RAJA0MB0-CWM

The M321RAJA0MB0-CWM is a 128GB DDR5 RDIMM ECC module engineered for modern CPU platforms that rely on high-bandwidth memory channels to scale core count, virtualisation density, and in-memory data services. In DDR5 server refresh projects, the M321RAJA0MB0-CWM enables larger per-socket memory footprints while maintaining JEDEC-aligned operation at 5600MT/s for predictable latency and interoperability across qualified server boards.

Designed as a registered DIMM, the M321RAJA0MB0-CWM supports stable signalling in multi-DIMM-per-channel topologies and complements PCIe Gen5 expansion by keeping CPU-to-memory throughput aligned with high-speed I/O. Its 72-bit data path (64+8) with ECC provides data integrity for transactional and analytical workloads, while the 1.1V DDR5 electrical profile supports efficient scaling in dense racks. The result is balanced memory capacity and bandwidth for storage-heavy nodes, consolidation hosts, and CPU-centric HPC/AI systems where system memory performance is a first-order constraint.

Why Choose the M321RAJA0MB0-CWM?

The M321RAJA0MB0-CWM delivers a strong density-to-bandwidth ratio in a single 128GB module, simplifying configuration for capacity growth without fragmenting channels across smaller DIMMs. It is well-suited to enterprise standardisation, offering ECC protection, registered buffering for scalable population, and a clear upgrade path for environments expanding VM memory footprints and in-memory caching tiers.

Samsung memory is developed with an engineering focus on qualification discipline, consistent electrical characteristics, and long-run supply stability. This approach aligns with current data centre requirements for validated platform compatibility, predictable behaviour under continuous load, and operational reliability across lifecycle-managed server fleets.

Key Applications:

• DDR5 server refresh and memory expansion
• Virtualisation and consolidation hosts
• In-memory databases and caching tiers
• Analytics and data warehousing
• HPC and AI CPU nodes

At Happyware - Server Hardware you benefit from non-binding offers tailored precisely to your deployment plan for the M321RAJA0MB0-CWM and from an extended warranty of up to 6 years to protect long-lived infrastructure investments.