QTY: 5 DC/DC 12V/24V Step Down to 5V 5A Buck Converter Regulator Power Module
Listed is 5 DC/DC converters, 12/24V to 5V 5A. Good for projects where you need 5Vs, great for automotive or RV camper projects which is what i used them for. YEL: output 5v 5A. BLK: output Ground.