GIGABYTE GA-990FXA-UD3 AM3+ AMD 990FX SATA 6Gb/s USB 3.0 ATX AMD Motherboard Storage Interface:6 x SATA 6Gb/s connectors,Support for SATA RAID 0, RAID 1, RAID 5,RAID 10 and JBOD, 2 x eSATA 6Gb/s Support for RAID 0 and RAID 1 Expansion Slots: 2 x PCI Express x16 slot running at x16 ,1x PCI Express x4 slots, 2 x PCI Express x1 slot, 1x PCI slots Memory: 4 x 1.5V DDR3 DIMM sockets supporting up to 32 GB of system memory. CPU: AM3+/AM3/AMD Athlon II Chipsets: AMD 990FX/AMD SB950. Revision 1.1. Audio: Realtek ALC889 codec , High Definition Audio, Dolby Home Theater, 2/4/5.1/7.1-channel, LAN: 10/100/1000 Mbit