Hama Docking hub alllows you to connect up to 4 USB devices (e.g. a printer or a mouse) to a USB port Integrated, high-quality connection cable USB 2.0 (backward compatible) Bus-powered, i.e. The voltage is supplied via the USB bus Voltage supply also possible via external power supply unit (not included) Includes bus overvoltage protection This USB hub is compatible with Windows 2000 from SP 3/XP from SP 1/Vista/7 and Mac OS 10.x Available in Silver and has a 1.5m lead