Kingston Technology Black 16GB Kit 2666MHz DDR4 CL13 DIMM XMP Intel Server Memory (HX426C13SBK2/16) Low latency for exceptional DDR4 performance - An unbeatable combination of fast speeds and aggressive timings to complement Intel's 2, 4, 6 or 8 core processors. Optimized for Intel's Z170 and X99 chipsets - Built-in Intel XMP profiles allow users to easily overclock their platforms by simply selecting a profile, with no need for manual timing adjustments in BIOS. Lower power consumption compared to DDR3 - HyperX Savage DDR4's lower power requirement means less heat and higher reliability. Die-cast aluminum heat spreader - die-cast aluminum heat spreader features an asymmetrical design a diamond cut finish. It provides enhanced thermal dissipation for improved reliability, and low profile.