SAMSUNG M393A1G40DB0-CPB 8GB DDR4-2133 ECC RDIMM memory upgrade

8GB DDR4-2133 ECC RDIMM for servers

This registered DIMM delivers 8GB of DDR4 memory at 2133 MT/s with CL15 latency and 1.2V operation. It targets system builders and IT teams maintaining qualified Supermicro X10 platforms that require ECC error correction and registered signal buffering. The single-rank 1Rx4 organisation fits standard 288-pin DDR4 slots in compatible server boards.

Steady throughput under continuous load

Registered clock, command and control buffering reduces electrical loading on the memory controller during sustained read and write cycles. ECC parity checking corrects single-bit errors on the fly, preventing data corruption during long-running workloads such as virtualisation hosts, database engines or compute clusters. The module maintains its rated 2133 MT/s speed without throttling when installed in validated configurations.

DDR4-2133 interface ceiling

The PC4-17000 interface caps peak bandwidth at 17 GB/s per module, so total throughput scales linearly with the number of populated channels on the motherboard. Registered signalling adds one cycle of latency versus unbuffered DIMMs, a fixed cost that cannot be eliminated by tighter timings. Systems needing higher memory bandwidth or lower latency must move to a faster DDR4 speed grade or a newer memory generation.