This box does several things for us.
1.
Crunch happens! We build it robust.
2. Each subsystem is on it's own connector. This makes troubleshooting much easier.
3. Connectors are designed to survive numerous disconnection / reconnection cycles, unlike the 3-pin headers on the RC which are directly soldered to the circuit card.
4. We can remove the entire controller in about 30 seconds by just removing four screws and disconnecting six 15-pin connectors and the modem. Again, this simplifies troubleshooting.
5. All of the external connections on the box are keyed. There's no way to plug something in the wrong way and let the smoke out.
6. Did you get a look at that thing? Come on, coolness counts.
