The LINDY USB 2.0 Active Extension Cable Pro allows you to extend the cable length of your USB device by an additonal 8m. It can be used as a standalone 8m extension cable or as part of our unique and versatile USB Active Extension System. When used as part of the USB Extension System, this cable can be directly connected to a computer as the starting piece of a \'daisy chain\' in conjunction with the LINDY 8m Active Extension Pro 4 Port Hub, 12m Active Extension Cable Pro and 12m Active Extension Pro 4 Port Hub to create a USB 2.0 connection spanning up to 56m with either 1 or 4 USB 2.0 ports at the remote end. It can also be used as a middle segment of an installation. See below for more details on system installations. Check out ComputerActive\'s 4 Star review of the LINDY USB Active Extension System Pro! Installation To install a USB 2.0 Active Extension System Pro is simple. Start with this 8m Active Extension Cable Pro. Then use up to 4 additional 8m or 12m Active Extension Cables to extend your device further. If you wish to add extra USB ports or to connect a bus powered USB device, use either a 8m or a 12m 4 Port Extension Pro Hub kit as the final segment. The picture below is an example of a typical set-up. Package Contents 8m USB 2.0 Active Extension Cable Pro LINDY Manual