OWC 256GB DDR4 3200 CL22 ECC Load Reduced LRDIMM 288-pin memory upgrade

256GB DDR4 ECC LRDIMM for Supermicro servers

This 256GB DDR4 3200 CL22 module is a single 288-pin load-reduced DIMM built for Supermicro motherboards H12DSG-O-CPU, H12DST-B, H12DSU-iN, H12SSL-C and H12SSL-i. It targets server, workstation and NAS administrators who need maximum registered capacity per slot. The 1.2V JEDEC-standard part is not compatible with standard desktop computers.

Load-reduced design and 8Rx4 organisation

The load-reduced architecture reduces electrical load on the memory bus, allowing dense 8Rx4 population on supported Supermicro platforms. A 288-pin DDR4 connector ensures mechanical compatibility with the listed boards, while ECC protection corrects single-bit errors in mission-critical workloads. This module cannot be mixed with unbuffered or standard registered ECC DIMMs.

Upgrade from lower-capacity DDR4 LRDIMMs

The part replaces smaller load-reduced modules to raise total system memory without adding slots, and it runs at 3200MHz while remaining backward compatible with 2133MHz, 2400MHz, 2666MHz and 2933MHz bus speeds. The jump is worthwhile when virtualisation, in-memory databases or large dataset processing demand more than the currently installed capacity per channel.