Apple Memory Module 16GB DDR4 2400MHz SO-DIMM (2x8GB) - Apple
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
CORSAIR VENGEANCE RGB PRO SL 16GB (2PK x 8GB) 3600MHz DDR4 C18 DIMM Desktop Memory CMH16GX4M2D3600C18 - Best Buy