M393AAG40M32-CAE Samsung 1x128GB DDR4 RDIMM ECC RAM

High-Density DDR4 RDIMM Server Memory for Scale-Up Platforms with the M393AAG40M32-CAE

The M393AAG40M32-CAE is a 128GB DDR4-3200 ECC Registered RDIMM engineered for enterprise 2-socket servers where memory capacity and signal integrity drive overall node efficiency. By using registered buffering and ECC on a 288-pin DDR4 DIMM, the M393AAG40M32-CAE supports stable high-density population across multi-channel CPU memory controllers common in modern Intel Xeon and AMD EPYC DDR4 generations.

Architecturally, the M393AAG40M32-CAE enables larger per-node working sets without shifting to a new platform, helping keep PCIe lane budgets focused on accelerators and high-speed networking rather than additional compute nodes. With 3200 MT/s operation at 1.2V and a 72-bit data path, this RDIMM improves resilience for storage-heavy virtualization clusters and database tiers where cache, buffer pools, and in-memory indexing are sensitive to latency and error rates. The quad-rank organization is optimized for capacity scaling, allowing dense DIMM configurations that align with NVMe-centric storage architectures and PCIe expansion strategies in existing DDR4 server fleets.

Why Choose the M393AAG40M32-CAE?

The M393AAG40M32-CAE is selected when you need maximum DDR4 capacity per slot with enterprise-grade error protection and predictable behavior under sustained load. It supports a favorable density-to-performance profile for consolidation projects, scaling memory headroom while maintaining platform consistency for firmware, validation, and lifecycle management.

Samsung designs RDIMM memory with a focus on data centre reliability, tight production control, and compatibility across leading server platforms. This approach aligns with enterprise standards for uptime, traceability, and long-term supply planning in refresh and expansion cycles.

Key Applications:

• Virtualization and VM consolidation
• In-memory databases and caching layers
• Analytics and large buffer workloads
• Enterprise application servers

At Happyware - Server Hardware you benefit from Bulk Order Discount options for large-scale memory rollouts and can request Non-Binding Offers to match the M393AAG40M32-CAE to your server configuration and validation requirements.