GA-990FXA-D3 (rev. 1.x) AMD 990FX + SB950 Chipset BIOS 990FXAD3.F9a Supports newest AMD AM3+ FX/AM3 Phenom™ II series processors 4 PCI-E 2.0 interfaces for 2way AMD CrossFireX and SLI multi-graphics support AMD SB950 provides 6 native SATA3 ports with superfast 6Gbps link speed and RAID 0, 1, 5, 10 support Supports USB 3.0 with superfast transfer rates of up to 5 Gbps GIGABYTE 3x USB Power with On/Off Charge USB ports Ultra Durable 2 Classic Technology with copper cooled quality for lower working temperature Turbo XHD technology accelerating hard drive performance with ease Revolution energy saving design with Easy Energy Saver technology Hi-def 108dB Signal-to-noise ratio Blu-ray DVD audio playback Patented DualBIOS with Hybrid EFI technology for 3TB HDD support