I should probably point out that the original Super Nintendos had more power available through the cartridge port. The early SNES game copiers would draw power from the cartridge port to operate. Nintendo reduced the amount of power in later revisions to combat this, but the cart copier companies just started using external power supplies. If I remember correctly, when attempting to use a Super Wild Card copier on the later models the screen would flash like crazy while trying to load a game and then the loading would fail. This happened around the same time Nintendo also removed the plastic cartridge lock from the system.