NEMIX RAM 256GB (2x128GB) DDR5 4800 ECC RDIMM Supermicro H13SST-G

Exact-match DDR5-4800 kit for Supermicro H13SST-G

This 256 GB kit contains two 128 GB DDR5 RDIMMs rated at 4800 MT/s with CL40 timing and 1.1 V operation. The 2Rx4 registered ECC modules are built to the precise rank, voltage and timing the H13SST-G memory controller expects so the full capacity is recognised at rated speed. It targets administrators upgrading or populating this specific Supermicro server platform.

Sustained-load behaviour with registered ECC

Registered buffering offloads the memory controller, allowing both DIMM slots to run fully populated at the rated 4800 MT/s without down-clocking under continuous throughput. ECC corrects single-bit errors on the fly, preventing silent data corruption and unplanned reboots during long compute or database workloads. The 2Rx4 organisation maintains bandwidth consistency across all ranks.

Thermals, noise and power in normal operation

Operating at 1.1 V keeps per-module power draw low, and the absence of heat spreaders relies on the server's directed airflow for cooling. In a properly ventilated chassis the modules run within spec without adding audible fan noise beyond the system's baseline. The low voltage and registered architecture together minimise thermal contribution to the overall platform power budget.