Features: 100% Brand new Provide 2 USB charging ports for auto Module Properties: non-isolated buck Light compact convenient to use and transport Rectification: synchronous rectification All epoxy sealed containers with Waterproof Housing With overload/over-current/overheat/low voltage protection stable performance. Short circuit protection: sustainable self-recovery Specifications: Input voltage: 12V Red line: Positive Black line: Negative Output interface: 2 Type A USB Female Ports (For USB charging devices like S2 DC...) Output voltage: 5V Output Current: 3A Max Output Power: 15W Conversion efficiency: up to 96% Soft-start time: 500mS Output ripple: 50mV (MAX) 20M-bandwidth Dynamic response speed: 5% 200uS Total Cable length: 145cm Net weight: 57g Package contents: 1 x DC 12V to 5V 3A USB Converter