This unit comes without a power supply or a USB cable.

Using this Chroma - Q Vista EX Control Surface is straightforward. Just connect it to your appropriate setup without having to worry about a built - in power supply or USB cable. Remember, you'll need to source your own power supply and USB cable for it to work. When it comes to maintenance, keep it in a clean and dry place. Avoid exposing it to extreme temperatures or moisture. Regularly check for any signs of damage, like loose buttons or frayed connections. If you encounter any issues, make sure to consult a professional technician.