PNY Performance 16GB DDR4 DRAM 2666MHz (PC4-21300) CL19 (Compatible with 2400MHz or 2133MHz) 1.2V Notebook/Laptop (SODIMM) Computer Memory RAM – MN16GSD42666 at Amazon.com
Gigastone 【DDR4 RAM】 Desktop RAM 16GB (2x8GB) DDR4 16GB DDR4-2666MHz PC4-21300 CL19 1.2V 288 Pin Unbuffered Non ECC UDIMM for PC Computer Desktop Memory Module (Desktop ONLY) at Amazon.com
G.Skill Trident Z RGB Series 16GB (2 x 8GB) 288-Pin SDRAM (PC4-25600) DDR4 3200 CL16-18-18-38 1.35V Dual Channel Desktop Memory Model F4-3200C16D-16GTZR at Amazon.com