G.Skill Trident Z NEO 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-32GTZN at Amazon.com
HyperX Predator Black 16GB 4000MHz DDR4 CL19 DIMM (Kit of 2) XMP (HX440C19PB3K2/16) at Amazon.com
CORSAIR ddr4 ram 8GB 3200MHz or 2400MHz 3000MHz 2666mhz DIMM Desktop Memory Support motherboard ddr4 pc4|RAMs| - AliExpress