Model: M4A87TD/USB3 Chipset: AMD 870 CPU socket: Socket AM3 Compatibility: Phenom II, Athlon II, Sempron (Thuban, Deneb, Heka, Callisto, Propus, Rana, Regor, Sargas). Memory Type: DDR3 Number of DDR3: 4 Bus Speed: 2000 ~ 5200 MHz Sound: 8 - channel HDA codec VIA VT1818 Networking: Realtek RTL8111E 10/100/1000 Mbit/sec Number of PCI: 3 Number of PCI-Express x1: 1 Number of PCI-Express x4: 1 Number of PCI-Express x16: 1 Serial ATA 6Gb/s: 6 Ports: 1x PS/2 keyboard, 1x PS/2 mouse, 2x USB 3.0, 6x USB 2.0, 1x RJ-45 LAN, 1x optical S/PDIF-out, Line-out, Line-in, Mic-in. Form Factor: ATX (305 x 213 mm)