MSI Socket AM3+ AMD 970 DDR3 ATI CrossfireX SATA3&USB3.0 A&GbE ATX Motherboard - 970A-G45 CPU: Socket AM3+/AM3 Support AMD Phenom II X8/X6/X4/X3/X2, Athlon II X4/X3/X2 and Sempron Processors; Support Unlock CPU Core Technology; Support HyperTransport 3.0; FSB up to 4.8GT/s Chipset: AMD 970 & SB950 Chipset Memory: 4x 240pin DDR3-2133(O.C.)/1866/1600/1333/1066/800 DIMMs, Dual Channel, unbuffered; Max Capacity up to 32GB Slots: 2x PCI-Express 2.0 x16 Slots(Support ATI CrossfireX); 2x PCI-Express 2.0 x1 Slots; 2x 3.3V/5V PCI Slots SATA: 6x SATA3 Ports, Support RAID 0/ 1/ 5/ 10 LAN: Realtek 8111E PCI-Express Gigabit Ethernet Controller Ports: 12x USB 2.0 Ports(6 rear, 6 by header); 2x USB 3.0 Ports; 1x PS/2 Port; 1x Serial Port; 1x Optical SPDIF-out; 1x RJ45 Port; Audio I/O Jacks Form Factor: ATX