16GB G.Skill Ripjaws 4 DDR4 2400MHz PC4-19200 CL14 Intel X99 Quad Channel kit (4x4GB) Black Heatsinks 16GB Quad Channel Kit - 4 matched 4GB modules DDR4 2400MHz memory, PC4-19200 With Black Ripjaws 4 heatsinks Low-Latency CL14 memory - Timings of 14-14-14-35 at 1.2V Lower voltage means lower power consumption