This will NOT work on the Mag250 or Mag410 or Mag520; please see my other listings.
This has an EU prong with a USA adapter. You can use (black) electrical tape to secure the adapter to the prong.
This power supply is rated CE; and provides a steady and continuous supply. If you have issues with your Mag Box shutting down for no reason, then purchase this power supply and it will solve your issues!