I ordered this card for a customer who by damaging the front usb ports on his tower pc, lost the motherboard function driving these ports. Having replaced the front port hardware, this card connected to (by header cable) & drove these ports without problem, as well as providing 4 further spare ports to the rear of the machine, and 1 spare internal port.The motherboard was an S755MAX (Athlon 64) mobo running with Windows XP. The USB drivers were contained in the operating system, installation CD not needed.