Features: USB to DC5.5/3.5mm router optical-cat booster line, 5V booster to 9V 12V charging cable. DC5V input voltage, DC9V or 12V output voltage, output current up to 9V/2A 12V/0.8A. Router new favorite, it can be used to power the router through the power pack when the power is cut off. It can also be applied to other 5V power supply equipment, such as small fan, desk lamp, solar panel, USB power pack, power adapter and more. With switch and LED display, you can select 9v or 12v output through the switch, and the LED display will display the output voltage value, plug and use, easy to operate. Specifications: Material: ABS Color: Black Length: Approx. 80cm/2.6ft Input Voltage: 5V Output Voltage: 9V / 12V Output Current: 9V 2A 12V 0.8A Interface Properties: USB convert to DC round hole Note: Please allow 0-1cm error due to manual measurement. make sure you do not mind before you order. Please allow for slight color differences due to different monitor resolutions. Package includes: 1pc USB to DC5.5/3.5mm Converter Cable 1pc 3.5x1.35mm Connector