Flux capacitor connector

Flux capacitator connectors were parts of hyperdrives. If they broke during hyperspace travel, they could short out the hyperdrive and cause the starship to abruptly drop out of hyperspace.

Behind the scenes
This is an obvious reference to the Flux capacitor, a fictional device from the of the Back to the Future movie trilogy. Invented by Dr. Emmett Brown, it allowed Doc Brown and Marty McFly to travel through time in their De Lorean DMC-12.