A scomp link or computer interface arm was an astromech droid accessory that allowed the droid to plug into computers, via a computer terminal, and other equipment. It consisted of an extensible arm with a rotating tip. Other names included standard access adapter, computer input port, and computer interface socket.
R2-D2 used this tool to save his masters many times. The first time he saved Padmé Amidala on Geonosis by deactivating a piece of assembly line machinery that would have otherwise killed the Senator. R2 also used his scomp link to control the turbolift Anakin Skywalker and Obi-Wan Kenobi occupied on the Invisible Hand. Later, he used it to stop Garbage Compactor 3263827 from crushing Luke Skywalker, Han Solo, Chewbacca, and Leia Organa on the Death Star. He also used it to open the door to the bay where the Millennium Falcon was located during the escape from Cloud City, and learned that the hyperdrive on the ship had been deactivated. R2 also tried to help using the scomp link during the Battle of Endor at the Endor shield generator bunker, but before he could do much in terms of slicing into the door controls and overriding the security codes for the lock, a Stormtrooper saw what he was trying to do and fired a single shot that hit R2 and sent him reeling back from the scomp link terminal, causing R2 to suffer a short-circuit as all his various devices popped out as a result of the power surge, forcing Han to try to manually override it.
Scomp links could also seemingly be used to transmit data from one device to another. While pursuing Rivo Xarran, Boba Fett had the scope on his blaster rifle Scomp-linked to his visor, so he could aim while in a position that would otherwise exclude precision shots.
- A Guide to the Star Wars Universe (as sensor arm)
- Cracken's Rebel Field Guide
- Wanted by Cracken
- Star Wars Technical Journal of the Planet Tatooine (as computer interface arm)
- Galladinium's Fantastic Technology
- Galaxy Guide 5: Return of the Jedi, Second Edition
- Star Wars Technical Journal (as computer interface arm)
- Star Wars Customizable Card Game – Premiere Limited (Card: Imperial Code Cylinder)
- Star Wars Customizable Card Game – Premiere Limited (Card: Scomp Link Access)
- Shadows of the Empire Planets Guide
- Cynabar's Fantastic Technology: Droids
- Gundark's Fantastic Technology: Personal Gear
- The Essential Guide to Weapons and Technology
- Hideouts & Strongholds
- A Guide to the Star Wars Universe, Third Edition
- Star Wars: Revenge of the Sith: The Visual Dictionary (As "computer-interface arm")
- The Complete Star Wars Encyclopedia
- Scavenger's Guide to Droids
- Millennium Falcon Owner's Workshop Manual
- Star Wars: The Old Republic Encyclopedia