What Is MIG Switch For Nintendo, And How Does It Work?
The way it works is that you stick a Switch game cartridge into the MIG Switch Dumper, then plug that into a PC to back up the data. You can then stick a regular microSD card into your PC, format it, load it with the proprietary MIG Switch software, and then add the game files to it. That modified microSD card can be plugged into the special MIG Switch Card, shaped like a Switch cartridge. Stick that card into your Switch’s cartridge slot, and you can play the games you’ve loaded up. You can even load multiple games and swap between them by ejecting and re-inserting the card. MIG Switch claims this process can be performed on a completely vanilla Switch, with no hacks or modifications required, and that it would even keep working after Switch firmware updates.
The intention of this device is to more tangibly back up games and save data, though similar devices have been used instead to spread and play pirated games. In a warning that is displayed to visitors to the product’s site, MIG Switch’s developers stress that their device is not intended for this purpose.
“MIG Switch does not approve the use of its device with ROMs of games that you do not own, downloaded from the Internet or owned by a friend or any outside source,” the warning reads. “Beside the fact that it is illegal, it will void our warranty and support.”