The R2 astromech is Industrial Automaton's most successful series of diagnostic and repair droids, largely due to the compact design that enables it (unlike its predecessors) to fit precisely into the astromech sockets of starfighters. An R2 unit performs all of the most complex astrogation, flight data, technical diagnosis, and power management tasks, freeing fighter pilots to concentrate on staying alive.
The R2 astromech droid is surp risingly versatile for its size. R2s boast an overwhelming array of tools and sensors, all tucked away behind various access panels, keeping the housing largely free of obstructions. Industrial Automaton's designers even found a way to include "wasted space" in the chassis, allowing internal storage, easy upgrades, and modifications. Even the four standard appendages (two manipulator arms, an electric arc welder, and a circular saw) can be quickly and easily switched out with a number of specialty arms available. The two empty slots are typically filled with a fire extinguisher and a computer interface probe (for an additional cost).
Because these droids are quick-witted, sincere, and often insightful, many owners are reluctant to have their memories wiped, resulting in headstrong, independent astromech droids.