iHomeTravel Sub Hub, 4 Port,Red Slim and sleek design is powerful enough for everyday use and easily slips into your notebook case for traveling Add 4 sub ports to your computer - connect your iPhone, iPad, digital camera, mouse, thumb drive and more High speed sub 2.0 technology System requirements - windows 2000, windows up, windows vista, windows 7 and 8, sox 10.0 or later