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