Tested & Refurbished PC Motherboard With I/O Plate.The Foxconn G31S-K is a compact Micro-ATX desktop motherboard built on the Intel G31 Express chipset. It features an LGA775 processor socket, designed primarily to support legacy Intel Core 2 Quad, Core 2 Duo, Pentium, and Celeron processors. This budget-friendly, ultra-compact legacy board is optimized for light computing tasks and retro PC buildsKey Specifications Processor Socket: LGA775 socket supporting Core 2 Quad, Core 2 Duo, Pentium Dual-Core, and Celeron processors (including 45nm multi-core variants). Chipset: Intel G31 Express + ICH7. Front Side Bus (FSB): Supports speeds of 1333 / 1066 / 800 MHz. Memory Support: 2 x 240-pin DIMM slots supporting Dual-Channel DDR2 RAM (800 / 667 MHz) with a maximum capacity of 4GB. Integrated Graphics: Onboard Intel Graphics Media Accelerator 3100 (GMA 3100) via the VGA port. Expansion Slots: 1 x PCI Express x16 slot (for dedicated graphics cards) 1 x PCI Express x1 slot 2 x Standard PCI slots Storage Connectors: 4 x Serial ATA (SATA) 3.0 Gb/s ports and 1 x IDE/PATA connector. Networking & Audio: Integrated Realtek 1Gb/s Gigabit Ethernet LAN and Realtek ALC662 6-Channel HD Audio. Rear I/O Ports: 4 x USB 2.0 ports, 1 x VGA port, 1 x RJ45 LAN port, 3 x Audio Jacks (5.1 channel line-out/line-in/mic), 1 x Parallel port, 1 x Serial port, and PS/2 keyboard/mouse ports