Y-2D0 was a protocol droid with computer-programming specialties that was part of a community of droids that resided on the moon Uffel during the waning years of the Galactic Republic. In about 31 BBY, the droids' MSF mouse droid production line in the settlement X2-4 was sabotaged by the rogue droid LN-73, and Y-2D0 and the protocol droid JS-25 were subsequently sent to repair the facility's damaged computer systems.