OWC 2R9D42R816GB 16GB DDR4 2933 ECC Registered RDIMM memory upgrade

Server-grade DDR4 for Supermicro X11SP series

This 16 GB DDR4 2933 ECC registered DIMM is built for Supermicro motherboards X11SPA-TF, X11SPD-F, X11SPG-TF, X11SPH-nCTF and X11SPH-nCTPF. It targets administrators upgrading or repairing workstations, servers or NAS systems that require registered memory with error correction. Standard desktop boards cannot use this module.

Registered ECC — the single compatibility gate

The module is a 2Rx8 288-pin DDR4 RDIMM with on-die ECC and a register buffer. It will not work in systems that accept only unbuffered non-ECC UDIMMs, and it cannot be mixed with unbuffered memory in the same platform. Buyers must verify their board explicitly supports registered ECC DDR4 before ordering.

16 GB per slot at 2933 MT/s with backward headroom

Each stick delivers 16 GB at PC4-23400 CL21 1.2 V and is rated for 2933 MT/s. The specification also lists backward compatibility at 2133, 2400 and 2666 MT/s, so the module will clock down automatically in slower channels. Total capacity scales with the number of populated slots up to the motherboard limit.