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
Patriot Viper Elite II DDR4 32GB(2 x 16GB) 4000MHz Kit at Amazon.com
G.SKILL Trident Z5 32GB [2 x 16GB] DDR5 SDRAM Memory Kit at Amazon.com
G.Skill Trident Z Royal Series - DDR4-16 GB: 2 x 8 GB - DIMM 288-PIN - ungepuffert at Amazon.com