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
HP RAM Memory - 8GB - DDR4 SDRAM PC Memory 1XD84AT, 8 Gb at Amazon.com
Synology RDIMM ECC RAM DDR4-2666 16GB at Amazon.com