AS Rock LGA1155 Intel Z77 Quad CrossFirex Quad SLI SATA3 USB3.0 A GbE MATX Motherboard  Z77 PROFESSIONAL-M CPU: LGA1155; Supports Intel 2nd/3rd Generation Core i7/ i5/ i3 Processors; Supports Intel Turbo Boost 2.0 Technology; Supports Hyper-Threading Technology Chipset: Intel Z77 Memory: 4X DDR3 2800+(OC)/2400(OC)/2133(OC)/1866(OC)/1600/1333/1066 DIMM Slots Non-ECC, Unbuffered, Dual Channel, Maxi Capacity up to 32GB Slots: 2X PCI-Express 3.0?X16 Slot (dual at X8/X8 mode); 1X PCI-Express 2.0 X16 Slot (runs at X4); 1X PCI-Express 2.0 X1 Slot SATA: 4X SATA3 Ports two support RAID?0, 1, 5, 10; 4X SATA2 Ports Supports RAID?0, 1, 5, 10; 1 X eSATA3 Port (shared with SATA3 port) Ports: 8X USB 2.0 Ports (2 rear,?6?via header); 6X USB 3.0 Ports(4 rear,?2?via header); 1X PS/2 Keyboard/Mouse Port; 1X Optical S/PDIF Out; 1X RJ45 LAN Port; 1X HDMI Port; 1X?DVI Port; 1X VGA Port; 1 X Display Port; 1 X eSATA3 Port; Audio I/O Jacks Power Connector: 1X 24-Pin ATX Power Connector, 1X 8-Pin 12V Power Connector