Socket am3 mainboard form factor atx supports multi core processors 8 core compatible cpus amd fx amd phenom ii amd athlon ii amd sempron 100 processor codename bulldozer chipset amd 990fx cpu support to 140 watt memory slot 4 ram operation mode dual channel ram type ddr3 specification pc3 19200 pcie 20 support number of pci x x 16 slots 3 number of pci x x 1 slots 2 network port 1 x rj45 lan port back panel io ports 1 x ps2 6 x usb20 4 x