NEMIX RAM 256GB (2×128GB) DDR5 4800 PC5-38400 CL40 1.1V 2Rx4 288-pin ECC RDIMM kit Supermicro H13SST-GC

256 GB DDR5 ECC RDIMM kit for Supermicro H13SST-GC

This 256 GB kit contains two 128 GB registered DDR5 modules built for the Supermicro H13SST-GC motherboard. The 288-pin RDIMM form factor matches the board's slot requirements exactly. Registered buffering and on-die ECC protect data integrity in multi-socket server workloads. It is not suited for desktops or workstations that accept only unbuffered UDIMMs.

2 × 128 GB at DDR5-4800 CL40 1.1 V 2Rx4

Each module runs at 4800 MT/s with a CAS latency of 40 at the standard 1.1 V. The dual-rank 2Rx4 organisation lets the memory controller address the full 256 GB across both slots. Population rules for the H13SST-GC determine whether additional kits can be added; consult the motherboard manual for supported configurations and slot order. Systems needing higher bandwidth or lower latency will require faster-rated modules.

Registered ECC RDIMM form factor decides

The 288-pin registered DIMM with ECC is the single specification that determines whether this kit works in your server. Only motherboards wired for DDR5 RDIMMs with registered buffering and error correction will recognise the modules at full capacity and rated speed. Verify the H13SST-GC memory population table before purchase.