Canon ACK-E4 AC Adapter Kit (100-240V)

The Canon ACK-E4 AC Power Adapter is designed to supply uninterrupted power for your camera while downloading pictures to your computer, for extended work in a studio, or while viewing images while connected to your TV or VCR. It's compatible with EOS 1D Mark III, IV, EOS-1Ds Mark III, and EOS-1D X SLRs.