NEMIX RAM 256GB 4x64GB DDR5 4800MHz ECC Registered RDIMM Supermicro H14DSG-OD

256GB DDR5 RDIMM kit for Supermicro H14DSG-OD

This 256GB kit contains four 64GB DDR5 4800MHz Registered ECC modules built to the exact rank, voltage and timing the Supermicro H14DSG-OD memory controller expects. It is designed for administrators who need the full 256GB capacity recognised at rated speed without manual tuning.

Capacity and headroom at DDR5 4800 CL40

Four dual-rank 2Rx4 modules populate every slot at 1.1V, delivering 256GB of registered memory with on-the-fly single-bit error correction. The registered architecture keeps the controller stable when all channels are fully loaded, while the CL40 latency and PC5-38400 bandwidth handle typical virtualisation and database workloads. Workloads that exceed 256GB or require higher frequencies will need a platform that supports larger DIMMs or faster memory standards.

Upgrade path from smaller or unregistered kits

Replacing a partial kit or unbuffered UDIMMs with this matched 4x64GB set removes population-rule conflicts and enables the board to run all channels at the rated 4800MHz. The jump is worth it when the current configuration caps usable capacity, forces down-clocking, or lacks ECC protection for production data. Systems that already run a validated 256GB registered kit at this speed gain no additional capacity or bandwidth from this change.