Corsair Vengeance RGB Pro 16GB (2x8GB) DDR4 4000 (PC4-32000) C18 AMD Optimized Memory – Black
Amazon.com: G.SKILL 32GB (4 x 8GB) Trident Z Royal Series DDR4 SDRAM (PC4 32000) 4000MHz 288-Pin Desktop Memory Model F4-4000C15Q-32GTRG : Electronics
4000 128GB (kit) G.Skill Trident Z Royal Series (4X 32GB) at Amazon.com
G.Skill RipJaws V Series 16GB (2 x 8GB) 288-Pin SDRAM (PC4-32000) DDR4 4000 CL18-22-22-42 1.35V Dual Channel Desktop Memory Model F4-4000C18D-16GVK
G.Skill RipJaws V 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-32GVK
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
G.Skill Trident Z Royal 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-32GTRS
Amazon.com: Corsair Vengeance RGB Pro 32GB (2x16GB) DDR4 4000 (PC4-32000) C18 Optimized for Intel Z490 – Black (CMW32GX4M2G4000C18) : Electronics
Patriot Viper Elite II DDR4 32GB(2 x 16GB) 4000MHz Kit 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
Lexar ARES 16GB Kit (8GBx2) RGB Lightning, DDR4 4000 MHz DRAM Desktop Memory for Gaming, White (LD4EU008G-R4000GDWA)
Corsair Vengeance LPX 32GB (2 X 16GB) DDR4 4000 (PC4-32000) C18 1.35V AMD Optimized Memory - Black at Amazon.com