Droid brains were a form of processing computer usually used in droids. They could also be used in starships, and the modified YT-1300 light freighter known as the Millennium Falcon was equipped with three: an R3-series astromech droid's brain, a V-5 transport droid brain and a slicer droid brain.
- Star Wars: Obi-Wan & Anakin, Part III
- Moving Target: A Princess Leia Adventure (First appearance)
- Aftermath: Life Debt (First identified as data brain)
- Star Wars: Absolutely Everything You Need to Know (First mentioned)