M391A2K43BB1-CTD Samsung 1x16GB DDR4 UDIMM ECC RAM

Enterprise DDR4 ECC UDIMM Memory Expansion featuring 16GB JEDEC Stability with the M391A2K43BB1-CTD

M391A2K43BB1-CTD is a Samsung server-grade DDR4 ECC UDIMM designed to expand memory capacity in unbuffered ECC platforms where signal integrity and deterministic behavior matter. As a 16GB single DIMM running at 2666 MT/s (JEDEC PC4-21300E), it supports balanced bandwidth and latency characteristics for CPU-bound workloads typical of single-socket and edge server deployments.

Built as a 288-pin, 72-bit ECC UDIMM with dual-rank x8 organization, M391A2K43BB1-CTD aligns with mainstream DDR4 memory controllers found across widely deployed server generations. ECC capability adds protection against single-bit errors, improving application resilience under long uptimes. With 1.2V operating voltage and low-profile height, M391A2K43BB1-CTD fits dense chassis layouts and airflow-sensitive nodes while preserving compatibility for systems that explicitly require unbuffered DIMMs rather than RDIMMs or LRDIMMs.

Why Choose the M391A2K43BB1-CTD?

M391A2K43BB1-CTD provides a pragmatic density-to-cost step-up for DDR4 UDIMM infrastructures that need incremental scaling without changing CPU platforms or motherboard topology. It supports predictable performance at JEDEC settings, helps maintain fleet consistency, and enables straightforward node standardization for virtualization and web/application tiers where reliability and serviceability are primary design goals.

Samsung engineers memory for enterprise duty cycles, emphasizing compliance to JEDEC specifications, controlled component selection, and validation for long-term stability in 24/7 server environments. This approach supports modern data centre practices focused on repeatable provisioning, reduced variance across batches, and compatibility with established DDR4 UDIMM ecosystems.

Key Applications:

• DDR4 ECC UDIMM server memory expansion
• General virtualization hosts
• Web and application servers
• Light database nodes
• Edge and branch office servers

At Happyware - Server Hardware you benefit from non-binding offers tailored to your rollout plan for M391A2K43BB1-CTD, helping you align quantities and delivery timing with maintenance windows. For larger refresh projects, bulk order discount options support consistent DIMM populations across server groups.