Asus, P8z68-V Le Motherboard Atx Lga1155 Socket Z68 Usb 3.0 Gigabit Lan Onboard Graphics (Cpu Required) Hd Audio (8-Channel) "Product Category: Computer Components/Motherboards" Intel Socket 1155 for 2nd Generation Core i7/Core i5/Core i3 Processors 4 x DIMM, Max. 32GB, DDR3 2200(O.C.)/2133(O.C.)/1866(O.C.)/1600/1333/1066 MHz RAM Multi-VGA video output support : HDMI/DVI/RGB ports. Supports AMD Quad-GPU CrossFireX Technology 1 x PCIe 2.0 x16 (blue), 1 x PCIe 2.0 x16 (x4 mode, black) , 2 x PCIe 2.0 x1 , 3 x PCI 2 x SATA 6Gb/s, 4 x SATA 3Gb/s, 4 x USB 3.0 port(s) (2 at back panel, blue, 2 at mid-board)