The Q-series droideka represented a line of droideka battle droid utilized by the Separatist Droid Army within the Confederacy of Independent Systems. Due to its minor external appearance changes and enhanced deflector shield generator, the Q-series droideka rendered both the P-series droideka and the W-series droideka outdated. The updated generator enabled the droid to simultaneously employ its shields and blasters without restriction. A minimum of two Q-series droidekas were present on the Invisible Hand, the flagship of the CIS Navy.