MSI AMD 990FXA-GD65 990FX Chipset, Socket AM3 @ FSB 5200MT/s, 64-Bit AMD Athlon/Phenom II Support, DDR3-1333, Dual Memory Channel, 4x DIMM Slots (Max 32GB) 2x PCI-Ex16, AMD CrossFire-X/SLI, 3x PCI-Ex1, 2x PCI 32Bit, 6x SATA3 RAID, 2x USB 3.0, 12x USB 2.0, 1x Serial Port, Azalia Realtek ALC887 8CH High Definition Audio Realtek 8111E 10/100/1000 LAN, DrMOS, APS, Hi-C Cap, all Solid Capacitors - 3 Year Warranty