To use this Ensemble Designs BrightEye 41 distribution amplifier, first, connect it to your video source. But remember, since it doesn't have a power supply, you'll need to use your own compatible power supply to power it up. When using, make sure the connections are secure to avoid signal interruptions. For maintenance, keep it in a dry and clean place. If there's any dust on it, use a soft, dry cloth to gently wipe it. Don't expose it to extreme temperatures or humidity as this may damage the device.