ASUS P8Z68-V PRO/GEN3 LGA 1155 Intel Z68 HDMI SATA 6Gb/s USB 3.0 ATX Intel Motherboard 2 x PCIe 3.0/2.0 x16 (1x16 or dual x8) 16-Phase Power Digital power phase AMD Quad-GPU CrossFireX and NVIDIA Quad-GPU SLI support 1 x Gb LAN featuring the latest Intel chipset Bluetooth v2.1 + EDR UEFI (Extensible Firmware Interface) BIOS BT GO! (BT Turbo Remote) - Beyond your Imagination of what Bluetooth can do! 4 x USB 3.0 (2 ports at back panel, 1 port at mid-board)