CPU Support LGA775 CPU Chipset Intel 82G41 + 82801HBM Chipset Group Memory 2 DIMM. 2 DDR3 duo-channel 1066MHz/1333MHz, up to 4GB FSB 800/1066/1333MHz Expansion Slots 1 x PCIEx16 1 x PCI Storage 4 x SATA 2.0 3Gb/s port(s) 1 x IDE LAN Realtek RTL8105E 100/10Mbps lan card Audio HD audio card, 6 channels output USB ports 8 x USB2.0 ports (4 ports at mid-board,4 ports at back panel) Back Panel I/O ports 1 x VGA 1 x PS/2 Keyboard 1 x PS/2 Mouse 1 x LAN(RJ45) port 4 x USB2.0 1 x COM/1 x LPT 3 Audio jacks Internal I/O Connectors 4 x USB 2.0 connector(s) support(s) additional 4 USB 2.0 port(s) Special feature support Hyper-threading