This Plura VF-PBM-207 7 LCD on-camera color viewfinder has been used for 10,215 hours. It comes with connection cables. There's a known issue where the 'Up' button doesn't work, but you can use the adjust knob to get around this problem.

Using this viewfinder is straightforward. First, connect it to your camera using the provided connection cables. When you operate it, you might notice that the 'Up' button doesn't work. Don't worry, you can use the adjust knob to perform the same function. As for maintenance, keep it in a dry and clean place. Avoid exposing it to extreme temperatures or direct sunlight. If it gets dirty, use a soft, dry cloth to gently wipe it. That way, your viewfinder will serve you well for a long time.