AC Adapter AC-E19, connects with DC Coupler DR-E19 for EOS-1D X Mark II to use power directly from an AC power source. Recommended when using the camera over extended periods. Supports 14FPS/16FPS high-speed continuous shooting on EOS-1D X Mark II. Also compatible with EOS-1D X, EOS-1D C, EOS-1Ds Mark III, EOS-1D Mark IV, EOS-1D Mark III.