Features: USB voltage step up converter cable universal for HUB splitter, hard disk box, router, surveillance camera and other power supply equipment With this cable, you can connect your power bank to router. Thus, when power failure, you can use your power bank to supply your router Link power supply to power the broadband with DC5.5MM interface, and the transmission is stable Universal USB 5V to DC8.4V or 9V or 12V Converter Step Up Voltage Converter Power Cable Widely usage, convenient for different kinds of devices Specifications: Material:PVC Color:Black Suitable for DC5.5MM Port Devices Option Type:USB 5V to DC8.4V Step Up Voltage Cable USB 5V to DC9V Step Up Voltage Cable USB 5V to DC12V Step Up Voltage Cable (Optional) Note: Please allow 1-2cm errors due to manual measurement,please make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x USB Voltage Step Up Cable