The JerkStopper Tethering Kit (USB Port), exclusively from Tether Tools, is the complete tethered setup that secures the cables of both your camera and computer. This kit will remove all the stress and strain placed on the cable or cord to ensure that it stays plugged in and prevents cable or equipment damage. The Camera Support connects to the holder on the camera where the wrist strap would be to provide slack to cables. The patented JerkStopper cable retention device for this particular computer support model uses a spare USB port as an anchor point by allowing slack in the cord in order to prevent damage or dislodging. This kit can be used with any standard A/C power adapter cord, flash sync cord, HDMI, USB or FireWire cable. It supports cable diameters from 3.5mm to 8.5mm.