To use this AJA Ki Pro device, first connect it to your video source. Remember, as it doesn't have a power supply, you'll need to use your own compatible one. When recording, select the appropriate HD or SD mode according to your needs. For playback, just load the recorded files. Keep the device in a cool and dry place. Avoid exposing it to dust and moisture. If there's any issue, check the connections first. Regularly clean the ports to ensure good contact.