The TetherBlock MC Multi Cable Mounting Plate from Tether Toolsis designed to prevent accidental removal of a cable from your camera's data ports, therefore preventing damage to the port and to your camera. By snaking a USB or FireWire, or HDMI cable through the TetherBLOCK's S-channel and attaching the TetherBLOCK to your camera's tripod mount you'll be able to shoot tethered to a computer without fear that a trip over the cable will damage the camera's sensitive data ports.
This second version of the mounting plate replaces the TetherBLOCK Slim, and adds a third channel for thick heavy duty cables as well as thin and medium sized cables. It has both a 1/4"-20 and a 3/8" tripod thread mount, allowing it to be mounted directly onto a tripod head. A 1/4"-20 slotted screw attaches the plate to the camera, and can be tightened with a coin. On the bottom of the plate are two 1/4"-20 threaded holes for adding accessories like microphones or video monitors.