SAMSUNG 8GB DDR4 2133 ECC RDIMM 1Rx4 M393A1G40DB0-CPB2Q

8GB DDR4 ECC Registered DIMM

This 8GB DDR4 module is built for servers and workstations that require error-correcting registered memory. It operates at 2133 MT/s with a CAS latency of 15 at 1.20V. The single-rank x4 organisation uses a 288-pin form factor. Buyers needing non-ECC or unbuffered DIMMs for consumer platforms cannot use this module.

Registered ECC with 1Rx4 organisation

The registered buffer and on-die ECC are the decisive specifications for compatibility. The module presents a 1Rx4 configuration with an 8-bit parity signal for error correction. Registers retime clock, command and control signals to reduce electrical load on the memory controller. Systems that require unbuffered memory or a different rank structure will not accept this DIMM.

Steady throughput at 1.20V

Under sustained load the module maintains its rated 2133 MT/s speed and CL15 timing at the standard 1.20V. The registered design helps signal integrity across fully populated channels during long compute runs. Thermal behaviour follows the DDR4 specification for registered DIMMs. No higher speeds or lower latencies are supported beyond the rated figures.