MSI Computer Corp. 7693-020R Motherboard North Bridge AMD 970 & South Bridge AMD SB950 Chipset ATX DDR3 800 AMD AM3+ Motherboards (970A-G46) CPU: Socket AM3+; Supports 64-bit AMD FX/ Phenom II X6/X4/X3/X2/ Sempron Processors; Supports HyperTransport 3.0; FSB up to 4.8GT/s Chipset: North Bridge AMD 970 & South Bridge AMD SB950 Chipset Memory: 4x 240pin DDR3-2133(OC)/1866/1600/1333/1066/800 DIMMs, Dual Channel, unbuffered; Max Capacity up to 32GB Slots: 2x PCI-Express 2.0 x16 Slots(Support SLI & CrossfireX); 2x PCI-Express 2.0 x1 Slots; 2x 3.3V/5V PCI Slots SATA: 6x SATA3 Ports, Support RAID 0/ 1/ 5/ 10 Ports: 12x USB 2.0 Ports(6 rear, 6 by header); 2x USB 3.0 Ports; 1x PS/2 Keyboard/Mouse?Port; 1x Serial Port; 1x Optical SPDIF Out; 1x RJ45 Port; Audio I/O Jacks Form Factor: ATX