Intel X299 Core X series (LGA2066) * Refer to www.asus.com for CPU support list DDR4 4133(O.C.)/ 3600(O.C.)/ 2666/ 2400/ 2133 * Hyper DIMM support is subject to the physical characteristics of individual CPUs. * Actual memory frequency differs from Intel CPU types and memory module. Please check Intel official site for more detail about the memory types supported by each CPU.