G.Skill F4-4000C18D-16GVK Ripjaws V 16GB (2x 8GB) DDR4 4000MHz Memory, Black, Speed 4000MHz, Capacity 16GB (2x 8GB), 42mm Modular Height, Voltage 1.35V, Latency CL18-22-22-42, Unbuffered, Non-ECC, Intel XMP 2.0 (Extreme Memory Profile) Ready. As the latest addition to the classic Ripjaws family, Ripjaws V series is the newest DDR4 memory designed for maximum compatibility and cutting-edge performance with the latest Intel® Core™ processors.