M391A1G43DB0-CPB Samsung 1x8GB DDR4 UDIMM ECC RAM

Enterprise DDR4 ECC UDIMM Server Memory Expansion with the M391A1G43DB0-CPB

The M391A1G43DB0-CPB is a Samsung DDR4 ECC UDIMM designed for entry server and workstation platforms that require unbuffered DIMMs while maintaining data integrity. Deployed as an 8GB capacity add-in, it supports stable memory population in CPU platforms with DDR4 integrated memory controllers, aligning with JEDEC-standard operation for predictable behavior across mixed enterprise configurations.

Architecturally, the M391A1G43DB0-CPB targets DDR4-2133 memory channels where consistency and compatibility matter more than tuned profiles. As a 288-pin, 1.2V ECC UDIMM, it enables 72-bit error-correcting operation in supported systems, improving resilience against single-bit faults that can impact virtualized SMB services, edge nodes, and ECC-capable workstations. While not influencing PCIe generation, storage topology, or expansion directly, reliable DRAM is foundational to I/O-heavy workloads by protecting filesystem caches, metadata operations, and application state held in memory.

Why Choose the M391A1G43DB0-CPB?

The M391A1G43DB0-CPB provides a practical density-to-reliability step for platforms limited to unbuffered ECC memory, allowing incremental scaling without changing the CPU or motherboard. Its JEDEC profile and conservative electrical characteristics support repeatable deployments, simplified qualification, and predictable performance in multi-node rollouts where stability is a primary design constraint.

Samsung engineers the M391A1G43DB0-CPB with an enterprise manufacturing focus on signal integrity, validation discipline, and long-term supply alignment, supporting modern data centre operational standards that prioritize controlled change management and consistent component behavior.

Key Applications:

• SMB virtualization hosts
• ECC-capable workstations
• Edge infrastructure nodes
• Entry server memory expansion

At Happyware - Server Hardware you benefit from non-binding offers tailored to your DDR4 ECC UDIMM configuration, and you can secure bulk order discounts when standardizing the M391A1G43DB0-CPB across multiple systems for consistent fleet maintenance.