OWC 256GB (2x128GB) DDR4 2933 ECC LRDIMM 288-pin 1.2V CL21 4Rx4 HP SimpliVity 325 Gen10

System-specific server memory

This OWC kit delivers 256 GB of DDR4 ECC load-reduced DIMM memory in two 128 GB modules. It is built for the HP SimpliVity 325 Gen10 and operates at 2933 MHz with CL21 latency at 1.2 V. The 4Rx4 registered design targets virtualisation hosts and dense compute nodes that require maximum capacity per slot.

288-pin LRDIMM form factor

Each module uses the 288-pin load-reduced interface that reduces electrical load on the server memory bus. No heat spreader is fitted, so airflow in the chassis must handle thermal management. The kit cannot be mixed with unbuffered or standard registered ECC DIMMs, and it will not work in desktop or consumer platforms.

Replaces HP part numbers 19047 and 11040 series

This upgrade supersedes HP part numbers P19047-H21, P19047-K21, P19047-B21, P18455-B21, P11057-1A1, P11057-0A1, P11040-K21, P11040-H21 and P11040-B21. Backward compatibility with 2133, 2400 and 2666 MHz buses allows deployment in earlier DDR4 generations. Buyers who need unbuffered memory or desktop compatibility should look elsewhere.