1. Motherboard 9-pin female header expands two female USB A interfaces 2. Also Compatible with USB1.1 3. Connect USB devices such as dongle and wireless mouse receiver. 4.Material: Plastic + Metal 5.Interface: USB2.0 9pin 6.Support system: WIN2000 / WinXP / 2003 / VISTA / 2008 / WIN 7 / WIN8 32/64 bit / Linux / MAC OS
