The Bung Game Partners Classic, a backup device for the Super Nintendo video game console.  This backup device allowed users copy game cartridges to floppy disk and run games from them.  This device also appeared elsewhere, where it was known by other names like the Professor SF.
<a href="//commons.wikimedia.org/wiki/User:Evan-Amos" title="User:Evan-Amos">Evan-Amos</a>
<span class="int-own-work" lang="en">Own work</span>