This Blackmagic Design ATEM 1 M/E production switcher comes without a power supply. It has a known issue where some of the prongs on the heat sink are bent, as shown in the photos.

To use this production switcher, first, make sure you have a suitable power supply. Connect all your video sources to the appropriate input ports. When operating, handle it gently to avoid further damage to the bent heat - sink prongs. For maintenance, keep it in a clean and dry place. Regularly check the connections to ensure they are secure. If you notice any other issues, refer to the photos again or consult a professional.