Ballistix Tactical 16GB Kit (8GBx2) DDR4 2666 MT/s (PC4-21300) DR x8 Unbuffered DIMM 288-Pin Memory - BLT2K8G4D26AFTA Speeds start at 2666 MT/s Faster speeds and timings than Ballistix Sport DDR4 Dual and four channel memory architecture maximizes data rates Gun metal gray heat spreader with black PCB Certified Intel XMP 2.0 profiles for easy setup