AS Rock LGA1155 DDR3 SATA3 USB3.0 Quad CrossFireX and Quad SLI A GbE ATX Motherboard Z77 EXTREME6 CPU: LGA1155; Supports 2nd/3rd Generation Intel Core i7/ i5/ i3 Processor; 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 Slots (single at X16/X8 or dual at X8/X8), 1X PCI-Express 2.0 X16 Slot (runs at X4), 1X PCI Express 2.0 X1 Slot, 1X mini-PCI Express Slot, 2 X PCI Slots SATA:?4X SATA3 Ports (one shared with eSATA3 port),?Two Support RAID 0, 1, 5, 10; 4X SATA2, Supports RAID 0, 1, 5, 10 Power Connector: 1X 24-Pin ATX Main Power Connector, 1X 8-Pin 12V Power Connector