Kingston 8GB DDR4 SDRAM Memory Module - for Server, Desktop PC, Workstation - 8 GB (1 x 8 GB) - DDR4-2666/PC4-21300 DDR4 SDRAM - CL19-1.20 V - ECC - Unbuffered - 288-pin - DIMM at Amazon.com
1TB Kit (8 x 128GB) DDR4-2666 PC4-21300 ECC Load Reduced Memory for ASRock Rack EPYCD8-2T Board by NEMIX RAM at Amazon.com
G.Skill Ripjaws V Series 32GB (2 x 16GB) 288-Pin SDRAM (PC4 21300) DDR4 2666 CL15-15-15-35 1.20V Dual Channel Desktop Memory Model F4-2666C15D-32GVR at Amazon.com
Crucial Technology 4GB 288-Pin RDIMM DDR4 (PC4-21300) Memory Module, CL=19, Registered, 2666 MT/S Speed, ECC, 1.2V, 512Meg x 72, Single Ranked, x8 Based at Amazon.com
Amazon.com: Axiom 8GB DDR4 SDRAM Memory Module - for NAS Server - 8 GB (1 x 8 GB) - DDR4-2666/PC4-21300 DDR4 SD : Electronics