To use this Blackmagic Design HDLink Pro DVI, first connect it to your DVI or HDMI display. Keep in mind it doesn't have a power supply, so you'll need to make other power arrangements. When using, avoid exposing it to extreme temperatures and moisture. For maintenance, clean the device gently with a soft, dry cloth regularly. Don't use harsh chemicals or abrasive materials as they may damage the unit. If you encounter any problems, check all connections first and make sure they are secure.