Please note: 1, The package only includes the motherboard, I/O shield and the Wifi Antenna, no aditional accessories, no original packaging. 2, Please confirm you buy the right product for your other components. 3, We will full check and test the motherboard before shipping, including the socket pins, please take more care when you open the socket cover to avoid damaging the pins, thanks. Intel X299Core X series (LGA2066) * Supports 28 and 44 PCIe lane processors (6-core and above) only. * 16 PCIe lane processors (4-core) are not supported. * Please refer to CPU Support List on ASRock's website for more information. DDR4 4000+ (OC) */ 3866 (OC) / 3800 (OC) / 3733 (OC) / 3600 (OC) / 3200 (OC) / 2933 (OC) / 2800 (OC) / 2666/ 2400/ 2133 * The maximum memory frequency supported may vary by processor type. * Please refer to Memory Support List on ASRock's website for more information.