R5-D4, also referred to as R5 (Arfive) and called "Red" by Luke Skywalker, was a red and white-striped R5 astromech droid owned by a group of Jawas on Tatooine in the early days of the Galactic Civil War. 
Shortly before the Battle of Yavin, the Jawas attempted to sell him to Owen Lars, but the droid purposely malfunctioned his motivator at the advice of R2-D2, so that Lars could purchase R2-D2 in R5-D4's place. The droid survived an Imperial attack on the sandcrawler soon after, and went out to find the Rebellion. 
R5 was still active by the time of the New Republic Era, and eventually came into the service of Mos Eisley hangar manager Peli Motto. He was later sold to the Mandalorian Din Djarin for his mission to the Living Waters of Mandalore. 
Some Droid Chips contain over 70 sounds.
 
This is a PCB for a custom personality chip and is designed to be used with droids from the Droid Depot at Galaxy's Edge.