ASRock Socket AM3/AMD 770/SATA3&USB3.0/A&GbE/ATX Motherboard 770 EXTREME3 CPU: Socket AM3 Support AMD Phenom II X6/X4/X3/X2(except 920 /940), Athlon II X4/X3/X2/Sempron processors; Memory: 4x 240pin DDR3-1600/1333/1066/800 DIMMs, non-ECC/un-buffered, Dual Channel, Upto 16 GB Slots: 1x PCI-Express 2.0 x16 Slots; 2x PCI-Express 2.0 x1 slots; 3x PCI Slots; Audio: Realtek ALC892 7.1-Channel Audio CODEC; LAN: Realtek RTL8111DL PCI-Express x1 Gigabit Ethernet Controller Ports: 11x USB 2.0 Ports (5 rear, 6 by headers); 1x USB 3.0 Ports; 1x eSATA2 Port;