Corsair DRAM 2666MHz C15 64.0  DDR4 2133 (PC4 2133) Using best of the best IC's available leads to highly overclock able memory Patented technology pulls performance-robbing heat away from the modules and allows Dominator memory to run at a cooler temperature. Customize the look and feel of your memory with upgradable light bars and Dominator Airflow LED fan. Dominator Platinum DDR4 is optimized and compatibility tested for the latest Intel 100 Series motherboards and offers higher frequencies, greater bandwidth, and lower power consumption. XMP 2.0 support for trouble-free automatic overclocking. The Corsair Link Digital connector allows you to monitor your memory's temperature for an optimal combination of performance and stability. Memory Type: DDR4; Speed: 2666MHz