RCS-1

The RCS-1 was a flight control computer designed by Miradyne Limited. It was installed on the standard models of the Starfeld Z-10 Seeker.

It is notoriously difficult to modify, enforcing a rigid set of inter-connectivity protocols, making sure more personal modifications have litte chance of working. What's worse is that with Miradyne's bankruptcy, replacement part of extremely hard to come by, so any breakdown in the RCS-1 system could be catastrophic.