MSI 990XA-GD55 AM3+ DDR3 SATA 6Gb/s USB 3.0 ATX AMD Motherboard CPU: Socket AM3+/AM3 Support 64bit AMD FX/ Phenom II X6/X4/X3/X2/ Athlon II X4/X3/X2/ Sempron Processors; Support HyperTransport 3.0; FSB upto 5200MT/s Chipset: AMD 990X & 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 CrossFireX & SLI); 4x PCI-Express 2.0 x1 Slots; 1x 3.3V/5V PCI Slot SATA: 6x SATA3 Ports, Support RAID 0/ 1/ 5/ 10 Audio: Realtek ALC892 Flexible 8-Channel Audio CODEC, w/ jack sensing, Support True Blu-ray Audio LAN: Realtek 8111E PCI-Express Gigabit Ethernet Controller MSI; 990XA-GD55; Motherboard