Intel B250 Intel Socket 1151 for 7th/6th Generation Core i7/Core i5/Core i3/Pentium/Celeron Processors * Not Compatible with Intel 8th Gen CPUs * Refer to www.asus.com for CPU support list DDR4 2400/ 2133 * Due to Intel chipset limitation, DDR4 2400MHz memory frequency is only supported by 7th Generation Intel processors. Higher memory modules will run at the maximum transfer rate of DDR4 2400MHz. * Due to Intel chipset limitation, DDR4 2133MHz and higher memory modules on 6th Generation Intel processors will run at the maximum transfer rate of DDR4 2133MHz. ** Refer to www.asus.com for the Memory QVL (Qualified Vendors Lists).