ASRock ASRock Fatal1ty Gaming Fatal1ty X99X Killer/3.1 LGA 2011-v3 Intel X99 SATA 6Gb/s USB 3.1 USB 3.0 ATX Intel Motherboard Memory Standard: DDR4 3200+*(*OC)/ 2933*/ 2800*/ 2400*/ 2133 Number of Memory Slots: 8×288pin Audio Chipset: Realtek ALC1150 PCI Express 3.0 x16: 3 x PCI Express 3.0 x16 Slots (PCIE1 @ x16 mode; PCIE3 @ x16 mode; PCIE5 @ x8 mode) * If you install CPU with 28 lanes, PCIE1/PCIE3/PCIE5 will run at x16/x8/x4. * If M.2 PCI Express module is installed, PCIE5 slot will be disabled. Max LAN Speed: Dual 10/100/1000Mbps CPU Type: Intel CoreTM i7 and Xeon 18-Core Processors Family Maximum Memory Supported: 128GB Channel Supported: Quad Channel