https://alexnld.com/product/high-quality-eu-plug-ac-100-240v-to-dc-12v-2a-power-adapter-tips-5-5-x-2-1mm-cable-length-1m-black/?hilite="AU Plug AC / DC Adapter 12V 1A for CCD Cameras, Output Tips: 5.5 x 2.1mm (Black)"