MSI 990FXA-GD80 Socket AM3+ AMD 990FX DDR3 CrossFireX & 3-Way SLI SATA3 and USB 3.0 A&GbE ATX Motherboard CPU: Socket AM3+/ AM3 Support 64bit AMD Phenom II X8/X6/X4/X3/X2/ Athlon II X4/X3/X2/ Sempron Processors; Support HyperTransport 3.0; FSB upto 5200MT/s. Chipset: AMD 990FX & SB950 Chipset Memory: 4x 240pin DDR3-2133(OC)/1800/1600/1333/1066/800 DIMMs, Dual Channel, Unbuffered, Max Capacity upto 32GB Slots: 4x PCI-Express 2.0 x16 Slots(Support CrossFireX & 3-Way SLI); 2x PCI-Express 2.0 x1 Slots; 1x 3.3V/5V PCI Slot SATA: 6x SATA3 Ports, Support RAID 0/ 1/ 5/ 10; 2x eSATA Ports 2x IEEE1394 Ports (1 rear, 1 by header); 1x Optical SPDIF Out; 1x Coaxial SPDIF Out; 1x RJ45 Port; Audio I/O Jacks Audio: Realtek ALC892 Flexible 8-Channel Audio CODEC, w/ jack sensing, Support True Blu-ray Audio Support Hyper Transport 3.0; FSB up to 5200MT/s Chipset: AMD 990FX & SB950 Chipset LAN: Realtek 8111E PCI-Express Gigabit Ethernet Controller Memory: 4x 240pin DDR3-2133(OC)/1800/1600/1333/1066/800 DIMMs, Dual Channel, Unbuffered, Max Capacity up to 32GB Ports: 10x USB 2.0 Ports(4 rear, 2x eSATA/ USB 2.0 Combo, 4 by headers); 4x USB 3.0 Ports(2 rear, 2 by header); 2x PS/2 Port; Support Hyper Transport 3.0; FSB up to 5200MT/s