NEMIX RAM DDR5 6400 ECC RDIMM 256GB (2x128GB) CL52 1.1V 2Rx4 288-pin

Registered ECC RDIMM kit

This 256 GB kit contains two 128 GB DDR5 RDIMM modules built for servers that require registered ECC memory. Each module runs at 6400 MT/s with a CAS latency of 52 and operates at 1.1 V. The 2Rx4 organization matches the memory controller expectations of compatible Supermicro platforms.

Sustained-load behaviour

Registered buffering reduces electrical load on the memory controller so all slots can remain fully populated at the rated 6400 MT/s speed. On-die ECC corrects single-bit errors in real time, preventing silent data corruption during continuous workloads. The 1.1 V operating voltage keeps power draw stable under extended operation.

DDR5 interface limits

The DDR5 standard used here tops out at the 6400 MT/s data rate and CL52 timing provided by this kit. Registered DIMMs add one clock cycle of latency versus unbuffered modules, a fixed penalty of the RDIMM architecture. Maximum capacity per channel is defined by the motherboard memory controller, not by these modules alone.