NEMIX RAM 128GB DDR5 6400MHz PC5-51200 2Rx4 CL52 1.1V 288-Pin ECC Registered RDIMM memory upgrade

Exact DDR5-6400 Registered ECC Module

This 128 GB DDR5 RDIMM runs at 6400 MHz (PC5-51200) with a CL52 latency and 1.1 V operating voltage. The 2Rx4 registered design adds a buffer that lets the memory controller drive every populated slot at full rated speed. It is built for Supermicro H13SRA-F and H13SRA-TF motherboards that require 288-pin registered ECC memory.

DDR5 RDIMM Population Rules Apply

Registered DDR5 modules still follow the motherboard's qualified-vendor list and slot-population order; exceeding the approved ranks per channel or mixing ranks can prevent the system from posting at 6400 MHz. The board's memory controller must also support 128 GB single-DIMM capacity, which varies by BIOS revision and CPU SKU. Always verify the manual before installing.

2Rx4 Rank Determines Full-Speed Operation

The dual-rank x4 organisation is the single specification that decides whether this module will run at its rated 6400 MHz when all slots are filled. A different rank or width would change the electrical load and could force the controller to downclock the memory bus.