Biostar A870U3 AMD 870 ATX DDR3 1333 AM3 Motherboard 2 x USB 3.0 ports which can transfer up to 10x faster than USB 2.0 CrossfireX Support (x16, x4) Supports all AM3 Processors. (125w TDP) 6 x SATA3 6Gbps 10/100/1000 Gigabit Ethernet 2 x USB 3.0 ports which can transfer up to 10x faster than USB 2.0 CrossfireX Support (x16, x4) Supports all AM3 Processors. (125w TDP) 6 x SATA3 6Gbps 10/100/1000 Gigabit Ethernet 6 Channel HD Audio