Intel Z270 Supports 7th and 6th Generation Intel Core i7/i5/i3 / Pentium/Celeron Processors (Socket 1151) * Not Compatible with Intel 8th Gen CPUs DDR4 4000+(OC)*/ 3866(OC)/ 3600(OC)/ 3200(OC)/ 2933(OC)/ 2800(OC)/ 2400**/ 2133 *Please refer to Memory Support List on ASRock's website for more information. **7th Gen Intel CPU supports DDR4 up to 2400; 6th Gen Intel CPU supports DDR4 up to 2133.