R2 series astromech droid

"Well, R2 units are a dime a dozen."

- Obi-Wan Kenobi, on how common R2 units were

R2 series astromech droids, also known as R2 units, were a very popular series of astromech droids produced by Industrial Automaton. They stood at around 1 meter in height, and were programmed to perform a variety of tasks. They were designed to be able to fit in the droid sockets commonly found on starfighters. R2-D2 was a notable example of this model. Although the R2 series was used prior to the Clone Wars, they were still considered to be new during the Age of the Empire. According to C1-10P, a C1-series astromech droid, the greatest flaw in R2 units' programming was compassion.

Behind the scenes
In the earliest Italian works, all astromech droids are called "C1 units" (R2-D2 is called "C1-P8").

Non-canon appearances

 * William Shakespeare's The Phantom of Menace: Star Wars Part the First
 * William Shakespeare's The Clone Army Attacketh: Star Wars Part the Second
 * Revenge of the Sith: Episode III (LEGO Star Wars)
 * William Shakespeare's Tragedy of the Sith's Revenge: Star Wars Part the Third
 * Star Wars Epic Yarns: A New Hope
 * Star Wars Epic Yarns: The Empire Strikes Back
 * Star Wars Epic Yarns: Return of the Jedi
 * LEGO Star Wars: Droid Tales Episodes I-III
 * LEGO Star Wars: The Force Awakens
 * Star Wars: Puzzle Droids
 * Star Wars: Galaxy of Heroes
 * LEGO Star Wars: The Force Awakens
 * Star Wars: Puzzle Droids
 * Star Wars: Galaxy of Heroes
 * Star Wars: Galaxy of Heroes
 * Star Wars: Galaxy of Heroes
 * Star Wars: Galaxy of Heroes