The EH-73PUK from Nikon is a charging AC adapter for select Z, COOLPIX, and KeyMission cameras. It facilitates charging a camera's battery while it is inside the camera and requires the additional UC-E21 USB Cable for connecting to a camera. The EH-73PUK is supplied with compatible devices and is sold here as a spare or replacement accessory. This power supply is made with a Euro-style plug rather than the American 2-blade style plug.