G.SKILL Trident Z Royal Elite Releases with High Performance CL14 Low-Latency Kits Up To DDR4-4000 32GB (16GBx2) - G.SKILL International Enterprise Co., Ltd.
G.SKILL TridentZ RGB Series 16GB (2 x 8GB) 288-Pin PC RAM DDR4 4000 (PC4 32000) Desktop Memory Model F4-4000C18D-16GTZR - Newegg.com
Corsair Vengeance LPX 16GB (2x8GB) DDR4 4000 (PC4-3200) C16 1.35V AMD Optimized Desktop Memory - Black at Amazon.com