Quadrant X

Quadrant X is a section of space containing the planet Zamojin.

The Transformers cartoon
When the Zamojin became a potential threat to the Quintessons, the Quintessons used a quadrant lock to seal off Quadrant X. Some five thousand years later, Galvatron discovered the quadrant lock and, following an adventure on Zamojin, the Autobots succeeded in disabling the lock, freeing that section of space.