HPE SmartMemory 32GB DDR4 SDRAM Memory Module - For Server - 32 GB (1 x 32 GB) - DDR4-2933/PC4-23466 DDR4 SDRAM - CL21 - 1.20 V - Registered - 288-pin - DIMM at Amazon.com
G.Skill Trident Z RGB Series 32GB (2 x 16GB) 288-Pin SDRAM PC4-28800 DDR4 3600 CL18-22-22-42 1.35V Dual Channel Desktop Memory Model F4-3600C18D-32GTZR at Amazon.com