SpecificationsMfr Part Number: P8H77-VCPU: Socket 1155; Supports Intel 3rd/2nd Generation Processors; Supports Intel Turbo Boost 2.0 TechnologyChipset: Intel H77Memory: 4x DDR3 DIMM Slots, Dual Channel, Non-ECC, Unbuffered, Max Capacity up to 32GBSlots: 1x PCI-Express 3.0 x16 Slot; 1x PCI-Express 2.0 x16 Slot (runs at x4); 2x PCI-Express 2.0 x1 Slots; 3x PCI SlotsMulti-GPU: AMD Quad-GPU CrossFireX TechnologySATA: 2x SATA3 Ports, 4x SATA2 Ports, Supports RAID 0/ 1/ 5/ 10Audio: VIA VT1708S 8-Channel High Definition Audio CODECVideo: Integrated Graphics Processor; Maximum shared memory of 1696 MBLAN: Qualcomm Atheros Gigabit Ethernet ControllerPorts: 10x USB 2.0 Ports (4 rear,6 at midboard); 4x USB 3.0 Ports(2 rear, 2 at midboard); 1x PS/2 Keyboard/Mouse Combo Port; 1x VGA Port; 1x DVI Port; 1x Display Port; 1x HDMI Port; 1 x Optical S/PDIF Port; 1x RJ45 LAN Port; Audio I/O JacksPower Connector: 1x 24pin EATX Power Connector; 1x 8pin ATX 12V Power ConnectorForm Factor: ATX, 12.0 x 8.9 inch / 30.5 x 22.6 cm