My question is because I don't see this model in AsRock Memory Support List but Amazon says it is x99 platform compatible.
Links:
http://www.asrock.com/mb/Intel/X99%20Extreme4/?cat=Memory
http://www.amazon.com/G-SKILL-Ripjaws-PC4-19200-Platform-F4-2400C15Q-64GVR/dp/B018OBIWVA/ref=sr_1_1?ie=UTF8&qid=1463876229&sr=8-1&keywords=64+gb+4x16gb+DDR4+x99
Memory description:
G.SKILL 64GB (4 x 16GB) Ripjaws V Series DDR4 PC4-19200 2400MHz Model F4-2400C15Q-64GVR
Links:
http://www.asrock.com/mb/Intel/X99%20Extreme4/?cat=Memory
http://www.amazon.com/G-SKILL-Ripjaws-PC4-19200-Platform-F4-2400C15Q-64GVR/dp/B018OBIWVA/ref=sr_1_1?ie=UTF8&qid=1463876229&sr=8-1&keywords=64+gb+4x16gb+DDR4+x99
Memory description:
G.SKILL 64GB (4 x 16GB) Ripjaws V Series DDR4 PC4-19200 2400MHz Model F4-2400C15Q-64GVR