M386AAG40BM3-CWE Samsung 1x128GB DDR4 LRDIMM ECC RAM

High-Density DDR4 LRDIMM Server Memory Module featuring enterprise ECC capacity with the M386AAG40BM3-CWE

The M386AAG40BM3-CWE is a 128GB DDR4-3200 ECC Load-Reduced DIMM engineered to raise memory ceilings in modern 2S/4S server platforms where CPU core counts and VM consolidation pressure demand predictable capacity scaling. By using an LRDIMM architecture, the M386AAG40BM3-CWE reduces electrical loading on the memory controller, enabling higher DIMM population per channel compared with standard RDIMMs while maintaining signal integrity at JEDEC DDR4-3200.

For enterprise compute stacks aligned to PCIe Gen4/Gen5 expansion and NVMe storage tiers, the M386AAG40BM3-CWE supports balanced node design: more memory per socket helps keep storage I/O and accelerator traffic efficient by reducing paging, improving cache residency, and stabilizing latency under mixed workloads. The quad-rank organization and 72-bit ECC data path are suited to virtualization density, in-memory databases, and HCI nodes that prioritize capacity headroom and resiliency over peak frequency tuning, operating at 1.2V with JEDEC CL22 timing for consistent interoperability.

Why Choose the M386AAG40BM3-CWE?

The M386AAG40BM3-CWE delivers a strong density-to-footprint profile in low-profile 288-pin DIMM slots, allowing IT teams to scale memory capacity without redesigning server configurations or sacrificing expansion for PCIe devices and storage. With ECC protection and load-reduction buffering, the M386AAG40BM3-CWE supports reliable growth paths for scale-out clusters and consolidated hosts where uptime, predictable behavior, and validated compatibility are mandatory.

Samsung designs server memory with a focus on signal integrity, tight process control, and standards-based interoperability, aligning with enterprise qualification practices and data centre operational requirements for long lifecycle deployments.

Key Applications:

• Virtualization and VDI consolidation
• In-memory databases and caching tiers
• HCI and scale-out compute nodes
• Capacity-focused 2S/4S enterprise servers

At Happyware - Server Hardware you benefit from non-binding offers tailored to your configuration and procurement model, ensuring the M386AAG40BM3-CWE is matched to your platform population targets and rollout schedule, with the option to extend the warranty up to 6 years for long-term operational assurance.