Eathtek Replacement Waterproof DC 12V to 5V 3A 15W Step Down Converter Regulator Female Panel Mount USB for Car (Not: It can't charge iphone!) Module Properties: non-isolated buck Light compact, convenient to use and transport Rectification: synchronous rectification Output ripple: 50mV (MAX) 20M-bandwidth Dynamic response speed: 5% 200uS All pictures are taken from the real item, please check carefully before bidding.