NEMIX RAM DDR5 256GB (16x16GB) 4800MHz CL40 1.1V 1Rx8 ECC Registered RDIMM 288-Pin Supermicro H14DSG-O-CPU

Supermicro H14DSG-O-CPU DDR5 kit

This 256GB kit contains sixteen 16GB DDR5 4800 RDIMMs built to the exact rank, voltage and timing the Supermicro H14DSG-O-CPU memory controller expects. Registered ECC architecture keeps every slot stable at full population while correcting single-bit errors before they reach production workloads. The 288-pin form factor matches the board's RDIMM slots and is not interchangeable with UDIMM or SODIMM modules.

Upgrade from partial or slower memory

Replacing a smaller or mixed-capacity kit with this sixteen-module set lets the server run all channels fully populated at the rated 4800 speed without downclocking. The jump is worth it when your current configuration leaves slots empty, mixes ranks, or uses lower-frequency DIMMs that force the controller to throttle the whole array. Registered buffering offloads the controller so the full 256GB operates reliably under sustained load.

Check manual before ordering

Verify the motherboard manual for supported capacities per socket, approved DIMM population order and any BIOS version requirements before purchase. Confirm the system accepts 1Rx8 Registered ECC modules at 1.1V and that all sixteen slots are available for this kit. Memory support varies by exact server model so the manual remains the authoritative source for fitment.