Crucial RAM 16GB Kit (2x8GB) DDR4 3200MHz CL22 (or 2933MHz or 2666MHz) Desktop Memory CT2K8G4DFRA32A at Amazon.com
TEAMGROUP Elite DDR4 16GB Kit (2 x 8GB) 3200MHz PC4-25600 CL22 Unbuffered Non-ECC 1.2V SODIMM 260-Pin Laptop Notebook PC Computer Memory Module Ram Upgrade - TED416G3200C22DC-S01 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