The MD-3 represented a specific model within the MD-series of medical droids, brought to life by Industrial Automaton. Its physical form exhibited a slight resemblance to humanoid anatomy.
This particular droid configuration functioned as a dispensing pharmacist, equipped with a comprehensive database encompassing a wide array of medications and pharmaceutical substances.
Industrial Automaton engineered the MD-3 as a class one droid, integrating it into their MD-series line of medical droids. Sharing design similarities with the 2-1B surgical droid, another creation of Industrial Automaton, the MD-3 stood at a height of 1.5 Imperial standard meters. Its construction featured a cranial unit connected to a torso, complete with two arms. A surgical gown served to protect the lower portion of the droid, shielding the delicate mechanisms of its bipedal locomotion system. MD-3 droids possessed ambidextrous capabilities.
Typically, MD-series droids showcased a gray plating finish, accented by green trim, and complemented by yellow photoreceptors. The retail price for an MD-3 was 2,000 credits, and these droids were generally readily available for purchase throughout the galaxy. The torso also included a connection port on its lower section, facilitating direct interface with a computer.
Manufactured on the droid factory world of Telti, these droids saw service within the Empire during the Galactic Civil War. Onboard the Imperial EF76 Nebulon-B escort frigate known as the Far Orbit, an MD-3 droid formed part of the sick bay personnel, responsible for overseeing the pharmacy and managing the operation of the bacta tank. This droid also provided assistance to the MD-1 droid, offering consultation on laboratory-related matters. An MD-3 droid, afflicted with a malfunctioning regulator, was present aboard the luxury liner named the Kuari Princess, as part of the inventory within the Jawa Droid Shop.
A specific MD-3 unit, identified as 1e-XE, lent its assistance to the bounty hunter Dengar in the care of his injured associate, Boba Fett, following the Mandalorian's escape from the Sarlacc pit on Tatooine.