Canon ACK-E6 AC power supply
AC adapter kit for the Canon 5D Mark II digital SLR.
The Canon ACK-E6 Adapter is necessary when one desires to use the camera indoors for an extended period of time without using battery power. The ACK-E6 Adapter provides uninterrupted power for shooting or downloading images. The Canon ACK-E6 Adapter Kit includes AC Power Adapter and Camera Power Cord.