The SD-4 was the fourth model of the Balmorran Arms SD-series battle droids.
Characteristics[]
The droid model began with the same flaws as the earlier models, but gained improved targeting systems when Balmorran Arms stole programming technology from the defunct Dark trooper program.
Sources[]
- The Essential Guide to Droids
- The Official Star Wars Fact File 43 (MIL8, Military Droids)