This Digidesign VENUE Stage Rack comes with a correct power supply. However, be aware that Slot M doesn't work.

To use this Digidesign VENUE Stage Rack, first connect it to the correct power supply provided. When setting up your audio inputs and outputs, you can use the 40 analog inputs and 8 AES inputs to bring in audio signals, and send them out through the 16 AES outputs. Remember that Slot M does not function, so avoid using it for any connections. For maintenance, keep the rack in a clean and dry place. Periodically check the power supply and all the input - output connections to ensure they are secure. If you notice any other issues, consult a professional audio technician.