Corsair Vengeance RGB Pro 16GB (2x8GB) DDR4 4000 (PC4-32000) C18 AMD Optimized Memory – Black at Amazon.com
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
G.SKILL Releases New Low-Latency DDR4-4000 CL16 and DDR4-4400 CL16 Memory Kits - G.SKILL International Enterprise Co., Ltd.
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 at Amazon.com
DDR4 Memory at 4000 MT/s, Does It Make a Difference? | TechSpot