Socket am3 mainboard series asus sabertooth form factor atx supports multi core processors 8 core compatible cpus amd fx chipset amd 990fx cpu support to 220 watt quickpath interface 52 gts memory slot 4 ram operation mode dual channel ram type ddr3 memory clock speed 1 866 mhz specification pc3 14900 maximum memory expansion 32 gb pcie 20 support number of pci x x 16 slots 4 number of pci x x 1 slots 2 network port 1 x rj45 lan port back