BrandG.SKILLSeriesRipjaws 4 seriesModelF4-3333C16Q-16GRKDType288-Pin DDR4 SDRAMTech SpecCapacity16GB (4 x 4GB)SpeedDDR4 3333 (PC4-26600)Cas Latency16Timing16-16-16-36Voltage1.35VECCNoBuffered/RegisteredUnbufferedMulti-channel KitQuad Channel KitFeatures2xG.SKILL Turbulence III memory fans includedExtreme performance DDR4 memory designed for gaming and PC enthusiastsHighly screened ICs for maximum performance and reliability Optimized compatibility with Intel X99 systemStylish aluminum heat spreader design to keep the memory cool XMP 2.0 support for automatic overclocking 1.35V ultra low voltagePlease check gskill.com for motherboard compatibility chart