ASUS ROG RAMPAGE V EXTREME/U3.1 LGA 2011-v3 Intel X99 SATA 6Gb/s USB 3.1 Extended ATX Intel Motherboard Memory Standard: DDR4 3300*(*O.C.)/ 3000*/ 2800*/ 2666*/ 2400*/ 2133 Non-ECC, Un-buffered Number of Memory Slots: 8×288pin Audio Chipset: ROG SupremeFX PCI Express 3.0 x16: 4 x PCIe 3.0/2.0 x16 (x16, x16/x16, x16/x8/x8 or x16/x8/x8/x8 mode with 40-LANE CPU; x16, x16/x8, x8/x8/x8 mode with 28-LANE CPU) *2 *2 The PCIE_X8_4 slot shares bandwidth with M.2 x 4. 40-LANE CPU: The PCIeX8_4 slot can only be used in x4 mode or lower when used simultaneously with the M.2 connector. If x8 mode is used, the two connectors will be mutually exclusive. 28-LANE CPU: The PCIE_X8_4 slot will be disabled and the M.2 connector will always be enabled. Max LAN Speed: 10/100/1000Mbps PCI Express 2.0 x16: 1 x PCIe 2.0 x16 (x4 mode) *3 *3 The PCIE_X4_1 (gray) slot shares bandwidth with the PCIE_X1_1 slot, USB3_E910 and SATAExpress_E1 connector....