A datacard or data disk was a flat shaped device used to transfer information. During the Battle of Scarif, the Death Star plans stolen by Rogue One were beamed to the Profundity, where they were transferred to a datacard. The card was given to Princess Leia Organa who later tried to deliver the plans to Obi-Wan Kenobi on Tatooine. When her ship fell under attack from the Imperial I-class Star Destroyer Devastator, she stored the datacard into the memory banks of R2-D2, shortly after recording a message for Kenobi.
- Star Wars: The Clone Wars – "Death Trap"
- Star Wars: The Clone Wars – "Duchess of Mandalore"
- Lords of the Sith (As data disk)
- Rebel Rising
- Star Wars Rebels – "Droids in Distress"
- Servants of the Empire: Rebel in the Ranks
- Leia, Princess of Alderaan
- Star Wars Rebels – "Double Agent Droid"
- Guardians of the Whills (Mentioned only)
- Rogue One: A Star Wars Story
- Star Wars: Episode IV A New Hope (First appearance)
- A New Hope: The Princess, the Scoundrel, and the Farm Boy
- Star Wars: Episode V The Empire Strikes Back
- Aftermath: Life Debt (Mentioned only)
- Star Wars Rebels: Sabine My Rebel Sketchbook (As data disk)