Size: 65 feet (20 meters) 's 65-feet USB 2.0 active extension cable is a bus powered extension cable that can be used to increase the length of a device cable without the worry of signal loss and potential performance problems. USB limits a cable's length to 16 feet. Any length above 16 feet requires the use of an active cable such as this one. This cable has a signal booster built in. The overall cable length can be extended up to 131 feet by daisy chaining up to 2 of these active cables. 3-year limited warranty