This unit doesn't come with a power supply. There's a known issue: as shown in the photos, the SDI input is bent.

Using this AJA Ki Pro video recorder and player is quite straightforward. First, connect it to your video source. But remember, you'll need to provide your own power supply as it's not included. When handling the unit, be extra careful around the SDI input because it's bent. Don't apply too much pressure on it to avoid further damage. For maintenance, keep it in a clean and dry place. Regularly check the connections to make sure they're secure. If you notice any other problems, it's best to consult a professional.