A Commodore 1530 (C2N) Datasette drive for the Commodore line of computers.  This made it possible to save and run programs from inexpensive cassette tapes.  Shown is a cosmetic variant model.
<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>