A standard component of the 2-1B surgical droid's equipment was a computer interface tether. This tether, with a five meter reach, granted the medical droid access to sophisticated medical data when attached.
- The Movie Trilogy Sourcebook
- The Star Wars Sourcebook, Second Edition
- Classic Campaigns
- The DarkStryder Campaign
- The Jedi Academy Sourcebook
- Galaxy Guide 3: The Empire Strikes Back, Second Edition
- Cynabar's Fantastic Technology: Droids
- " Cynabar's Droid Datalog " — Star Wars Adventure Journal 13