Box fitting into a computer's 5¼ disc bay

Every time I move my computer, I'm annoyed by things that must be moved with it but that can't be let fixed to tower (Wi-Fi antennas, by example, can easily grip something and be damaged or damage something inside or outside the computer). My solution: a box to put this things into. The box it-self fit into a 5¼ disc bay with a door that doesn't protrude of the computer case when it's closed.

Versions:
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### Existing case versions:

- A short one (5cm shorter than the standard ;