OWC 1TB (4x256GB) DDR4 2933 ECC LRDIMM memory upgrade

Server-grade ECC LRDIMM kit

This OWC kit provides 1 TB of DDR4 ECC load-reduced memory across four 256 GB modules. It runs at 2933 MHz with CL21 latency at 1.2 V on a 288-pin form factor. The kit targets Supermicro X11 server and workstation boards.

For multi-socket servers needing maximum capacity

The 8Rx4 organisation and load-reduced design suit dense virtualisation, in-memory databases and heavy compute nodes on the listed X11 platforms. It will not work in standard desktops, nor can it be mixed with unbuffered or registered ECC DIMMs. Buyers needing non-ECC memory or smaller capacities should look elsewhere.

1 TB total with four-channel headroom

Each 256 GB module fills a slot, giving 1 TB per populated channel on compatible boards. The kit comfortably handles large VM fleets and analytics workloads; capacity runs out when the platform’s maximum DIMM count or memory-controller limit is reached. Backward compatibility covers 2133, 2400 and 2666 MHz operation.