This product comes with a correct power supply. Note that the backlights on the 'SDI', 'EMBED', 'HDMI', and 'AES' buttons are not working, but the buttons themselves still function properly.

Using this Blackmagic Design UltraStudio 4K is easy. First, make sure you connect it with the provided correct power supply. When using the buttons, don't worry if the backlights on the 'SDI', 'EMBED', 'HDMI', and 'AES' buttons are out, as they still work fine. As for maintenance, keep it in a dry and clean place. Avoid exposing it to extreme temperatures or humidity. If you notice any other issues during use, it's best to contact the manufacturer for further assistance.