S-EP1 security droids were a unique droid model designed by Ulban Arms. They cost over 200,000 credits but were generally considered worth it, as they were top-notch. Their body was resistant to minor explosions. They were smart and skilled in battle tactics, criminal profiles, medical care, and vehicle operation. An S-EP1 once protected the children of Princess Leia Organa Solo.
- Boba Fett: Maze of Deception
- Shield of Lies (First appearance)
- Tyrant's Test
- The New Jedi Order: Star by Star