Using the Blackmagic Design ATEM 2 M/E Production Switcher is easy. First, make sure you connect it to the correct power supply that comes with it. When starting up, just follow the basic power - on steps. For configuration, although it's not supported on MacOS via the Blackmagic software, you can use other compatible operating systems. Be careful not to try to configure it on MacOS as it won't work. When it comes to maintenance, keep the switcher in a clean and dry environment. Avoid exposing it to extreme temperatures or humidity. Check the power supply regularly for any signs of damage. If you notice any issues, don't attempt to repair it yourself; contact the professional support team.