M321RAGA0B20-CWK Samsung 1x128GB DDR5 RDIMM ECC RAM

High-Density DDR5 RDIMM Server Memory Module for Capacity-Optimised Nodes with the M321RAGA0B20-CWK

The M321RAGA0B20-CWK is a 128GB Samsung DDR5 RDIMM designed to scale memory footprints in modern 2-socket and dense multi-node server platforms where ECC and registered buffering are mandatory for stability. Built for DDR5 generation CPUs, the module supports DDR5-4800 channel operation to increase per-channel throughput and improve memory service times for consolidation-heavy environments.

In architectures constrained by DIMM slot count, the M321RAGA0B20-CWK enables higher capacity per socket while maintaining signal integrity through RDIMM buffering and a 72-bit ECC data path. The quad-rank x4 organisation supports high-capacity population strategies, while the low-profile 288-pin form factor preserves mechanical clearance for high-airflow heatsinks and riser-based PCIe expansion. When paired with PCIe Gen5/Gen4 I/O and NVMe storage tiers, the M321RAGA0B20-CWK helps keep CPU cores fed with bandwidth for virtualisation, in-memory databases, and analytics pipelines where memory pressure is the primary limiter rather than compute.

Why Choose the M321RAGA0B20-CWK?

The M321RAGA0B20-CWK delivers a strong density-to-performance balance for enterprises that need predictable scaling without compromising platform reliability. Its DDR5 RDIMM design supports consistent uptime under high load, enabling straightforward capacity growth across clustered hosts, database nodes, and HPC partitions while keeping population rules and serviceability aligned with standard server qualification practices.

Samsung engineers memory for long-lived data centre operation, focusing on component consistency, electrical margining, and compliance with current platform validation requirements. This approach supports dependable integration into DDR5 server ecosystems and disciplined lifecycle management across fleet deployments.

Key Applications:

• Virtualisation host memory expansion
• In-memory and transactional databases
• HPC and technical computing clusters
• Analytics and ETL processing
• High-density cloud infrastructure nodes

At Happyware - Server Hardware you benefit from non-binding offers tailored to your platform and rollout plan, helping you standardise on the M321RAGA0B20-CWK across qualified configurations. For larger deployments of the M321RAGA0B20-CWK, bulk order discount options support cost-controlled scaling for enterprise and service provider environments.