32GB G.Skill DDR4 PC4-21300 2666MHz Ripjaws V for Intel Z170 / X99 CL15 Quad Channel kit (4x8GB) DDR4 memory upgrade designed for Intel Z170 / X99 chipsets (Skylake LGA 1151 / LGA 2011-3 CPU) 32GB Quad Channel memory kit - four matched 8GB modules Full timings of CL15 (15-15-15-35) at 1.2V PC4-21300 specification, rated to run at speeds up to 2666MHz 288-pin DDR4 memory, equipped with G.Skill Ripjaws V Red Heatsinks for improved heat dissipation