NEMIX RAM 128GB DDR5 4800 ECC Registered RDIMM 2Rx4 CL40 1.1V Supermicro H13SSW memory upgrade

Exact-fit DDR5 RDIMM for Supermicro H13SSW

This 128 GB DDR5 4800 (PC5-38400) module is a registered ECC RDIMM built to the 2Rx4 rank and 1.1 V specification that the Supermicro H13SSW memory controller expects. It installs in the board's 288-pin slots and is recognised at full capacity and rated speed without manual tuning. The part suits administrators upgrading a single H13SSW system to its maximum supported density.

Passive thermals and low-voltage operation

With no heat spreader, the module relies on chassis airflow and runs at the standard DDR5 voltage of 1.1 V. Registered buffering reduces electrical load on the memory controller, helping keep power draw predictable when every slot is populated. The CL40 latency is the rated timing at 4800 MT/s, so the server operates within its validated thermal envelope during sustained workloads.

Enterprise-grade build with registered ECC

The registered architecture offloads the controller to allow full-population stability, while on-die ECC corrects single-bit errors before they reach production data. Major OEM DRAM from Samsung, Micron or Hynix underpins the kit. Buyers who need unbuffered UDIMMs, SODIMM form factors, or non-ECC memory for workstation or desktop platforms cannot use this module.