USB C to DC 5.5x2.1mm power cable with selectable output voltage and builtin display A simple, flexible solution to power devices that use a 5.5x2.1mm DC jack from a USB C power source. This cable provides selectable output voltages of 5V, 9V, 12V, 15V, and 20V and includes a builtin output voltage display so you can confirm the selected setting at a glance. Key benefits Broad voltage range: Select 5V, 9V, 12V, 15V, or 20V to match the input requirements of a wide variety of devices. Clear feedback: Builtin voltage display shows the active output voltage so you can avoid mismatched settings. Simplifies power choices: Use one cable to adapt USB C power sources to devices that require a 5.5x2.1mm DC connector, reducing the need for multiple adapters. Compact and convenient: Ideal for field use or locations where carrying separate power bricks is impractical. Features and specifications Connector types: USB C input to 5.5x2.1mm DC output. Output voltages: 5V, 9V, 12V, 15V, 20V selectable. Voltage display: Builtin indicator that shows the selected output voltage. Intended use: Designed for devices that accept a 5.5x2.1mm DC barrel plug. Compatibility Works with any USB C power source that can supply the selected voltage and sufficient current for the target device. Suitable for devices with a 5.5x2.1mm DC input, including LED lights, modems and routers, and CCTV cameras. Practical use scenarios CCTV camera in a remote location: Power a surveillance camera from a portable USB C power bank or USB C wall charger by selecting the camera required voltage and plugging into the DC input. LED lighting for events or workspace: Run LED strips or desk lights that accept 5.5x2.1mm plugs from a USB C charger, choosing the correct voltage to match the light specifications. Router or modem backup power: Provide temporary power to a router or modem during an adapter replacement by selecting the appropriate voltage and using a USB C source. What to check before use Confirm the required input voltage and current of your device to select the correct output setting. Ensure your USB C power source can deliver the selected voltage and sufficient current for the device. This cable provides a straightforward way to adapt modern USB C power sources for devices with a 5.5x2.1mm DC input while giving visible confirmation of the output voltage.