Crucial Ballistix 3200 MHz DDR4 DRAM Desktop Gaming Memory Kit 16GB (8GBx2) CL16 BL2K8G32C16U4W (WHITE) 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
Amazon.com: Kingston FURY Beast 64GB (2x32GB) 3200MHz DDR4 CL16 Desktop Memory Kit of 2 KF432C16BBK2/64, Black : Everything Else