USB 5V to 9V/12V DC Step-up Cable5V U S B to DC5521 9V/12V Boost Power Cable with SwitchUSB-A to DC 5.5X2.1mm Voltage Boost Cablefor CameraRouterDashcam-3.28Ft (DC5.5X2.1)

- 【USB to DC 5V to 9V/12V Boost Converter】The input voltage is stabilized at DC 5V, with the output voltage supporting two adjustable levels of DC 9V and 12V. The output current range is 1A to 2.1A, corresponding to an output power of 6W to 7W. It precisely converts the USB A interface into a DC5521 interface, perfectly meeting the power supply requirements of various low-power DC interface devices. - 【Convenient Adjustable Voltage Switch (5V to 9V/12V)】The USB interface features a dedicated voltage adjustment switch on the side. Simply flick the switch to flexibly switch the 5V input to 9V or 12V output. Select the appropriate voltage level based on the device's actual power requirements for simple, hassle-free, and efficient operation. - 【Wide Compatibility】This USB to DC 12V/9V adapter cable allows you to power devices such as routers, cameras, LED lights, Bluetooth speakers, small fans, and low-power dashcams using a USB power bank or computer USB output port. All compatible devices must be small electronic devices with a DC5521 interface. - 【Safe and Reliable Materials】The USB to DC 5V to 9V/12V adapter cable features built-in copper conductors to ensure efficient and stable current transmission, preventing issues caused by poor conductivity that could affect device performance. The outer layer is wrapped in PVC insulating material to effectively protect the wires and prevent short circuits, ensuring safer use. - 【Important Usage Notes】Confirm the device's rated output voltage (must be 9V or 12V) and maximum operating current of 2.1A. The device's power consumption must not exceed the adapter's load capacity (output power ≤ 6W), otherwise it may cause device damage or adapter overload.