ITEM NAME:Usb booster cable 5V step up to 9V 12V voltage converter 1A step-up display FT Specification: Brand new Input Voltage: 5V Output Voltage: 9V / 12V Max. Output Current: 9V 2A, 12V 1.5A Interface Properties: USB hole convert to DC round hole Line Length: approx. 0.8m Feature: Step up regulator is designed with switch, you can choose the output 9v or 12v through it, and the LED display would tell the output voltage value. Can be used to power the router via power bank if power down. You can still enjoy the WIFI during power cuts. It can also be applied to other device which is 5v power supply, such as small fan, desk lamp, solar panel, USB power pack, power adapter etc. Fine workmanship and good performance. Small in size. Plug and play, convenient to use. Easy to use. Durable in use. Package included: 1 x USB Step-up Converter 1 x 3.5 * 1.35mm Connector Note: Please allow 1-5cm errors due to manual measurement..Output Current: 9V 2A, 12V 1.5A. 1 x USB Step-up Converter. Interface Properties: USB hole convert to DC round hole. Plug and play, convenient to use. Line Length: approx. Easy to use.