I keep a media server in an old radio shell (Mac mini, cable modem, 4 mini/portable hdd). It was. jumbled mess so every time I had to move it or get in there to reboot the cable modem stuff would fall out.

This box holds 4 portable hdd and a 5" fan to keep things cool. There are even holes running through the body to help with heat as well.

The first 2 versions kept warping at the corners causing the base to come loose during printing so I extended the outer walls an 1/8" and that fixed it. That might not be necessary with a heated bed but I don't have one.