G.Skill Ripjaws 4 series 16GB (4 x 4GB) 288-Pin DDR4 SDRAM...
16GB G.Skill Ripjaws 4 Quad Channel kit consisting of 4x 4GB modules. Rated to run at speeds up to 2666MHz (PC4-21300) and timings of CL15 (15-15-15-35) at only 1.2V. Engineered especially for the Intel X99 platform. With 288 pins and red heatsinks, the Ripjaws 4 Series should be your first choice in DDR4 memory.