TEAMGROUP T-Force Vulcan Z DDR4 32GB Kit (2x16GB) 4000MHz (PC4-32000) CL18 Desktop Memory Module Ram TLZRD432G4000HC18LDC01 red at Amazon.com
G.Skill Trident Z RGB Series 32GB (2 x 16GB) 288-Pin SDRAM DDR4 4000 (PC4-32000) CL18-22-22-42 1.40V Dual Channel Desktop Memory Model F4-4000C18D-32GTZR at Amazon.com