This Blackmagic Design MultiView 4 HD unit is a great video monitoring device, but please note it doesn't come with a power supply.

Using this Blackmagic Design MultiView 4 HD is easy. First, connect it to your video source. Then, you can start monitoring your videos. Since it doesn't come with a power supply, make sure you use a compatible one. When not in use, keep it in a dry and cool place. Avoid exposing it to direct sunlight or extreme temperatures. Clean it gently with a soft cloth if it gets dirty.