EOS-Series: 1D, 1Ds, 1D Mark II-IV, 5D, 7D, 10D, 20D, 30D, 40D, D30, 50D
CR-Camera 3-pin Remote Port Cable for Canon dSLR (default length 25cm/9.8″ – 12g). Controls Focus and Shutter release features of the camera. Possible to use continuous/bulb mode shooting. Type of suitable connector on camera is also shown in the following figure. Be sure your camera have same connector! Connect it to USB port of the CAMremote.