This is a new Infomir AC-DC power cord 12Volt 1000mA; 5.5mm / 2.1mm plug.

It is the proper specifications to use on Mag254, Mag254w1, Mag254w2, Mag256, Mag256w1, Mag256w2, Mag322, Mag322w1, Mag324, Mag324w2, Mag420, Mag420w1, Mag424, Mag424w3, and Mag425A. 

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!