Crucial 64GB (2 x 32GB) DDR4-3200 PC4-25600 CL22 Dual Channel Desktop Memory Kit CT2K32G4DFD832A - Green - Micro Center
G.Skill Trident Z Series 64GB (2 x 32GB) 288-Pin SDRAM (PC4-25600) DDR4 3200 CL16-18-18-38 1.35V Dual Channel Desktop Memory Model F4-3200C16D-64GTZR at Amazon.com