G.SKILL Ripjaws 4 Series 32GB (4 x 8GB) 288-Pin DDR4 SDRAM DDR4 2666 (PC4 21300) Memory Kit Model F4-2666C15Q-32GRKB Cas Latency: 15 Voltage: 1.2V Multi-channel Kit: Quad Channel Kit Timing: 15-16-16-35 Buffered/Registered: Unbuffered Features: Extreme performance DDR4 memory designed for gaming and PC enthusiasts Optimized compatibility with Intel X99 system Stylish aluminum heat spreader design to keep the memory cool 1.2V ultra low voltage Intel XMP 2.0 Support