Processor: Intel core 2 / core 2 duo/ Pentium/ Celeron processor in LGA775, support 4-pin CPU fan pin-header with fan speed control Chipset: Intel G31 chipset Memory: 2 DDR2 667/800 DIMM slots (4 GB Max) I/O interface: 1 x PS/2 mouse & keyboard port or 2 USB 2.0 ports), 4 x USB, compatible with USB 2.0, 1 x VGA port, 1 x 3-in-1 Audio port Onboard Interface:1 / 2 USB 2.0 connectors, 0 / 1 COM connector (optional), 1 front audio connector Audio: Chip integrated by Realtek ALC662, supports 5.1 channels audio out, compliant with Azalia 1.0 spec Integrated LAN: Supports LAN 10/100 Fast Ethernet by Realtek 8105E Slot: 1 x PCI Express x 16 slot, 1 x PCI slot supports 3.3V/ 5V bus interface Form Factor: Micro-ATX