This unit doesn't come with a power supply. Key point: No power supply included.

To use this combiner, first make sure you have your own suitable power supply. Connect the combiner to your system as needed. Remember, since it doesn't have a built - in power supply, you need to handle the power connection carefully. When it comes to maintenance, keep it in a dry and clean place. Check the connections regularly to ensure they are secure. Avoid exposing it to extreme temperatures or moisture as this may affect its performance.