Pair your select Nikon camera to the Case Relay System with this Relay Camera Coupler from Tether Tools. In this case, it takes the place of the EN-EL18-type battery pack and provides a connection to the power source for long-term, continuous operation of your camera. This setup can easily be swapped out with another coupler to provide you with compatibility across camera systems.
D3 (This coupler cable plugs directly into camera.)
D4/D4S (This cable requires the use of the separate Nikon EP-6 Coupler for compatibility.)
D5 (This cable requires the use of the separate Nikon EP-6 Coupler for compatibility.)