Comm units, also known as comm systems, were communication devices built into starships that allowed both external communication to other vessels and internal communications within different parts of a ship.
- "Mercy Mission"—The Rise of the Empire
- Star Wars: Episode IV A New Hope (First appearance)
- "End of Watch"—From a Certain Point of View
- "Contingency Plan"—From a Certain Point of View (Mentioned only)
- "Desert Son"—From a Certain Point of View
- From a Certain Point of View audiobook
- Darth Vader 8: Shadows and Secrets, Part II
- Moving Target: A Princess Leia Adventure
- "The Crimson Corsair and the Lost Treasure of Count Dooku"