Micron 64GB DDR4 3200 MEM-DR464MC-ER32 Server Memory
G.SKILL Trident Z Neo (For AMD Ryzen) Series 64GB (4 x 16GB) 288-Pin RGB DDR4 SDRAM DDR4 3600 (PC4 28800) Desktop Memory Model F4-3600C16Q-64GTZNC Desktop Memory - Newegg.com
CORSAIR VENGEANCE RGB PRO SL 64GB (4x16GB) DDR4 3600 (PC4-28800) C18 1.35V - White at Amazon.com
G.Skill Trident Z RGB Series 64GB (2 x 32GB) 288-Pin SDRAM (PC4-28800) DDR4 3600 CL18-22-22-42 1.35V Dual Channel Desktop Memory Model F4-3600C18D-64GTZR at Amazon.com