Getting emulators to play your favorite games from vintage consoles like the SNES can be a daunting task, involving dodgy websites and the massively increased possibility of PC viral infection. Until now!
The device was created by HackADay reader [Matthias_H], who claims this is his first attempt at a proper "hack". The results of that effort have yielded this rigged up this solution, which makes the cart show up on a PC as an external drive with the ROM file inside. From there, it's playable on your choice of readily-available emulators.
Even though the chances of having a working cartridge game, while not having a working console to play that cartridge, may be quite low, it never hurts to have a backup, you know?