Please Note: The Extension Kit Cable 12m cannot be directly connected to a computer, it can only be used as the middle or final segments in a LINDY USB (Universal Serial Bus) 2.0 Active Extension System Pro installation. The LINDY USB (Universal Serial Bus) 2.0 Active Extension Pro Cable can be used as the middle & final segments in a long distance USB (Universal Serial Bus) extender installation using the LINDY USB (Universal Serial Bus) 2.0 Active Extension System Pro. The cable works in combination with the LINDY 8m Active Extension Cable Pro, 8m Active Extension Pro Hub or 12m Active Extension Pro Hub to create a USB (Universal Serial Bus) 2.0 connection spanning up to 56m with either 1 or 4 USB (Universal Serial Bus) 2.0 ports at the remote end. See below for more details on system installations. Check out Computer Active's 4 Star review of the LINDY USB (Universal Serial Bus) Active Extension System Pro! Installation To install a USB (Universal Serial Bus) 2.0 Active Extension System Pro is simple. Start with an 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 (Universal Serial Bus) ports or to connect a bus powered USB (Universal Serial Bus) 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 12m USB (Universal Serial Bus) 2.0 Active Extension Cable Pro LINDY Manual