Usb To Dc 12V Power Cable input Interface: Type A male USB- Input voltage: 4.5-5.5VDC- Output Interface: DC Jack 5.5 * 2.1mm- Output voltage: 12VDC ± 2%- No-load current: low, 1mA- Continuous current: 1000mA (MAX)- Conversion efficiency: 92% (MAX)- Cable length: 1m It is USB to DC jack cable which contains DC-DC step-up power module and it outputs fixed 12V. It is particularly suitable for wireless router, Ar duino DIY, 12V DC fan, breadboard power supply and other projects.