New AC Power Adapter with DC Coupler Cable Kit for Canon EOS20D,30D,40D,50D,300D - Replacement for ACK-E2 AC Input: 100AC -240AC (50-60HZ) Designed for Canon EOS20D,30D,40D,50D,300D. Comes with a mini box (substitute of battery), directly power camera without battery. Ideal accessories for long-time photographing. US Plug.