BD-1 was a BD unit droid that accompanied Jedi Master Eno Cordova during the last years of the Galactic Republic. 
Following Order 66 and the rise of the Galactic Empire, the droid befriended Cal Kestis, a former Padawan who endeavored to rebuild the fallen Jedi Order.
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.