Features: USB boost input voltage is for DC 5V, output voltage is for DC 5V 9V or 12V. The converter can be used to power the router via a power bank if the power goes out. Plug-and-play, you can still enjoy WiFi during a power outage. It is suitable for products with a power consumption of about 6W-7W, such as routers, cameras, vehicle drivers, luminous LEDs, and other products. Package of 8pcs DC female to male adapters, small size and convenient to carry. Specification: Material: PVC + Metal Input Voltage: DC5V 1A-2.1A (compatible with 5V power bank) Output Voltage: DC 5V/ 9V /12V Power: about 6W-7W (output current: 7W / voltage = current) DC Connector: (5.5x2.1) (5.5x2.5) (3.5x1.35) (4.0x1.7) (6.0x4.0) (6.3x3.0) (4.7x1.7) (5.5x1.7) Wire Length: 1m/39.37inch round wire Length: Approx. 100cm/39.37inch Note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Allow 0-2mm error due to manual measurement. Package Includes: 1 x USB to DC Cable