Provides AC Mains Power supply to Camera's using this part number, replaces Canon ACK-DC40, ACKDC40, 2610B003AA - In-Car AC Power Supply Adapter & DR-40 Battery coupler kit - includes part DR-40 (Battery coupler) 4.2v 2a. Notes:- The ACK-DC40 In-Car AC Power Supply Adapter Kit provides continuous AC power when plugged into the camera via the DC-40 coupler.Provides AC Mains Power supply to Camera's using this part number, replaces Canon ACK-DC40, ACKDC40, 2610B003AA - In-Car AC Power Supply Adapter & DR-40 Battery coupler kit - includes part DR-40 (Battery coupler). 4.2v 2a.This unit includes DC Coupler DR-40 (Battery coupler for NB-6L Battery type.)Lifetime Ex-Pro WarrantyROHS, CE Approved and manufactured to a high standard.