Onboard Interface: 1 x 24-pin ATX Connector, 1 x 4-pin ATX 12V power connector, 2 x USB Connector, can support 4 x USB 2.0, 1 x F_AUDIO Connector, 1 x F_PANEL Connector, 1 x SPEAKER Connector, 1 x FAN Connector, 4 x Serial SATA Connector port, 1 x LPC_DEBUG Connector. Integrated Sound: With 6-channel HD Audio Codec onboard, Provides front audio interface; provides front stereo mic interface. Integrated LAN: With 10/100 Mbps LAN onboard Expansion Slot: 1 x PCI Express x 16 slot, 1 x PCI Express x 1 slot Dimension: Micro-ATX architecture (17 x 19 cm)