USB 3.0 SuperSpeed 4-port Controller PCI Express (VIA VL800 Chipset) Blazing Fast - Transfer Speeds Of Up To 5Gpbs 10X Faster - Than USB 2.0 Supply Power - Up To 600mA Max Backward Compatible - USB 3.0/2.0/1.1 More Ports - 4 USB 3.0 SuperSpeed Ports