This Blackmagic Design ATEM Production Studio 4K Live Switcher comes with a correct power supply. However, please note that inputs 5 and 8 are not working.

Using this live switcher is quite easy. First, make sure you connect the correct power supply to get it up and running. When you're using it, be aware that inputs 5 and 8 don't work, so avoid using them. For maintenance, keep it in a dry and cool place. Regularly check the power supply for any signs of damage. If you face any other issues, it's best to contact a professional for help.