Extends a USB-A connection by an additional 25 metres. The PC is connected via USB-A. If the power supply via USB-A is insufficient, an additional power port is built in to connect the included AC adapter. This cable can be used to connect and/or charge a USB peripheral. Max. 2 active extenders can be daisy-chained Plug and Play Bus-powered LED indicator Compatible with Windows 8/7/Vista/XP PC systems and Mac computer systems Colour: Black Includes: AC adapter (NA, UK, EU, AUS)