Features Synchronous rectification scheme, wide voltage, high current, high efficiency. With wiring terminal and DC input socket, very convenient to use. 4 USB ports, all with fast charging identification chip. Fitted with a aluminum shell for better protection and easy use. With input reverse connection protection, output short circuit protection. Specification:Item Type: Step Down Power Supply ModuleInput Voltage: DC 9V--36VOutput Voltage: 5.2V/5A/25WOutput Capacity:   9~24V Input: Output 5.2V/6A/30W   24~32V Input: Output 5.2V/5A/25W   32~36V Input: Output 5.2V/3.5A/18WSize: 70x40x30mm / 2.8x1.6x1.2inWeight: Approx 52g Package List:1 x 4 USB Output Step Down Power Supply Module  Package List