Intel D2550MUD2 Desktop Motherboard - Intel NM10 Express Chipset - 10 x Bulk Pack Number of Memory Slots: 2 Onboard Video Chipset: Intel GMA 3650 Max LAN Speed: Yes Maximum Memory Supported: 4GB PCI Slots: 1 x PCI Slot Audio Channels: 5.1 Channels PS/2: 1 USB 1.1/2.0: 2 x USB 2.0