NEMIX RAM DDR5 ECC RDIMM 384GB 6x64GB 4800MHz CL40 1.1V 2Rx4 Supermicro H14SHM

Exact-match upgrade for Supermicro H14SHM

This 384 GB kit contains six 64 GB DDR5 RDIMM modules built to the precise rank, voltage and timing the server's memory controller expects. Registered ECC architecture lets every slot run fully populated at rated speed while correcting single-bit errors on the fly. The 288-pin form factor matches the board's physical and electrical requirements.

Practical limits of DDR5 RDIMM at 4800 MT/s

DDR5 4800 (PC5-38400) CL40 at 1.10 V is the standard JEDEC operating point for this registered DIMM type; the memory controller cannot exceed this data rate without overclocking, which most server platforms forbid. Registered buffering adds one clock cycle of latency but removes electrical loading so all six slots stay stable at full capacity. ECC correction handles single-bit errors transparently but cannot recover from multi-bit failures.

2Rx4 organisation decides full-capacity operation

Each module uses a 2Rx4 rank structure that the H14SHM memory controller must support to recognise the full 384 GB; if the board's population rules restrict rank count per channel, the kit will not train at its rated size. Verify the manual's approved DIMM order and maximum rank-per-channel limit before purchase. Lifetime replacement warranty and US-based technical support back the kit.