GIGABYTE GA-Z68P-DS3 LGA 1155 Intel Z68 HDMI SATA 6Gb/s ATX Intel Motherboard CPU: Core i7/i5/i3 in LGA 1155 package , chipset: Intel Z68 Express Chipset Memory: 4 x 1.5V DDR3 DIMM sockets supporting up to 32 GB of system memory, Audio: Realtek ALC889 codec , High Definition Audio ,2/4/5.1/7.1-channel, LAN: 10/100/1000 Mbit Expansion Slots: 1 x PCI Express x16 slot running at x16 ,1 x PCI Express x16 slot running at x4 , Storage Interface: 2 x SATA 6Gb/s connectors , 4 x SATA 3Gb/s connectors ,Support for SATA RAID 0, RAID 1, RAID 5. Back Panel Connectors: 1 x PS/2 keyboard/mouse port, 1 x parallel port, 1 x serial port, 1 x optical S/PDIF Internal I/O Connectors: 1 x 24-pin ATX main power connector, 1 x 4-pin ATX 12V power connector, USB: Up to 12 USB 2.0/1.1 ports Dual channel memory architecture, DDR3 2133/1866/1600/1333/1066 MHz memory modules Expansion Slots:2x PCI Express x1 slots,2 x PCI slots, Support for AMD CrossFireX Out connector, 1 x HDMI port, 6 x USB 2.0/1.1 ports, 1 x RJ-45 port, 3 x audio jacks (Line In/Line Out/Microphone), 1 x mSATA connector, 1 x CPU fan header, 2 x system fan headers, 1 x power fan header, 1 x front panel header, 3 x USB 2.0/1.1 headers, 1 x clearing CMOS jumper, 1 x Trusted Platform Module (TPM) header, 1 x front panel audio header, 1 x S/PDIF Out header, 2 x SATA 6Gb/s connectors, 4 x SATA 3Gb/s connectors,