GIGABYTE GA-990FXA-UD7 AM3+ AMD 990FX SATA 6Gb/s USB 3.0 ATX AMD Motherboard CPU: AM3+/AM3/AMD Athlon II Chipsets: AMD 990FX/AMD SB950 Memory: 4 x 1.5V DDR3 DIMM sockets supporting up to 32 GB of system memory, Dual channel memory architecture Audio: Realtek ALC889 codec , High Definition Audio, Dolby Home Theater, 2/4/5.1/7.1-channel, LAN: 10/100/1000 Mbit Expansion Slots: 2 x PCI Express x16 slot running at x16 ,2 x PCI Express x16 slot running at x8 ,2x PCI Express x4 slots, 1 x PCI slots Storage Interface: 6 x SATA 6Gb/s connectors , Support for SATA RAID 0, RAID 1, RAID 5,RAID 10 and JBOD,2x SATA 6Gb/s connectors Back Panel Connectors: 1 x PS/2 keyboard/mouse port,1 x optical S/PDIF Out connector,1 x coaxial S/PDIF Out connector,1 x IEEE 1394a port Internal I/O Connectors: 1 x 24-pin ATX main power connector,1 x 8-pin ATX 12V power connector,1 x PCIe power connector USB: Up to 14 USB 2.0/1.1 ports, Up to 4 USB 3.0/2.0 ports, Up to 2 IEEE 1394a ports Memory : DDR3 2000(O.C.)/1866/1600/1333/1066 MHz memory modules Expansion Slots: Support for 2-Way/3-Way/4-Way AMD CrossFireX and NVIDIA SLI technology Storage Interface: 2 x eSATA 6Gb/s, Support for RAID 0 and RAID 1 Back Panel Connectors:7x USB 2.0/1.1 ports,2x USB 3.0/2.0 ports,1x eSATA/USB Combo & 1x eSATA 6Gb/s connector,1x RJ-45 port,6x audio jacks Internal I/O Connectors: 8 x SATA 6Gb/s connectors,1 x CPU fan header,2 x system fan headers,1 x power fan header,1 x front panel header Internal I/O Connectors: 1 x front panel audio header,1 x S/PDIF Out header,3 x USB 2.0/1.1 headers,1 x USB 3.0/2.0 header Internal I/O Connectors: 1 x IEEE 1394a header,1 x Trusted Platform Module (TPM) header,1 x clearing CMOS jumper,1 x clearing CMOS button Internal I/O Connectors: 1 x power button,1 x reset button