"Ever have a cable or power cord suddenly dislodge from your camera? Worse, has a cable ever accidentally been jerked out of your equipment and damaged the plug or cord? The JerkStopper Camera Support, exclusive to Tether Tools, used in conjunction with the Computer Support for a complete tethered set-up, removes the stress and strain from the cable or cord ensuring the plug stays in and protects from damage. The patented JerkStopper cable retention device provides slack in the cord preventing damage or dislodging. Once initially installed, the included quick disconnect enables future tethering set-up in seconds. Use the JerkStopper with any standard USB/FireWire cables (3.5mm diameter) all the way up to Guitar Amp cords (8.5 diameter). A versatile and inexpensive tool that could potentially save you hundreds if not thousands of dollars down the road."