Samsung M393A2G40DB0-CPB Memory Module DDR4 ECC RDIMM

Samsung M393A2G40DB0-CPB is a 16GB DDR4 ECC Registered RAM module (RDIMM) designed for servers. It uses a 2Rx4 organization and runs at PC4-2133P speed (2133 MT/s), delivering the capacity and bandwidth needed for memory-intensive workloads in enterprise environments. As an ECC RDIMM, it provides error-detecting capabilities to improve data integrity and system stability when used in compatible server motherboards, virtualization hosts, and database servers. This is a single 16GB DIMM (1×16GB) module suitable for configurations that rely on higher per-slot capacity while preserving server-grade reliability. The M393A2G40DB0-CPB part number corresponds to Samsung's DDR4 16GB memory with 2Rx4 organization and PC4-2133P timing, and is commonly listed in server memory catalogs and retailer pages under Samsung's M393A2G40DB0-CPB family. Server deployments that benefit from this module include virtualization, large-scale caching, and memory-intensive applications that require ECC protection and stable operation under load. When interchanging memory, ensure the motherboard/memory controller supports DDR4 ECC RDIMMs and 2133 MT/s operation to maintain full compatibility and performance.