P8Z68-M PRO Motherboard Intel Socket 1155 for 2nd Generation Core i7 / i5 / i3 Processors 4 x DIMM, Max. 32GB DDR3 2200 / 2133 / 1866 / 1600 / 1333 / 1066 MHz HDMI/DVI/RGB/DisplayPort. AMD Quad-GPU CrossFireX 1 x PCIe 2.0 x16 (blue) 1 x PCIe 2.0 x16 (x4 mode, black) *1 2 x PCI 2 x SATA 6Gb/s 4 x SATA 3Gb/s 2 x USB 3.0 ports 4 x USB 2.0