Silicon Power DDR4 RAM 16GB (8GBx2) Turbine 3200MHz (PC4 25600) 288-pin CL16 1.35V UDIMM Desktop Memory Module (SP016GXLZU320BDA) at Amazon.com
Kingston 8GB Memory Module 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
Crucial RAM 32GB Kit (2x16GB) DDR4 3200MHz CL22 (or 2933MHz or 2666MHz) Laptop Memory CT2K16G4SFRA32A at Amazon.com