Designation 4432 identified a B1-series battle droid that fought for the Confederacy of Independent Systems throughout the Clone Wars. This droid was positioned on the Tambor Deep Space Centre, where it aided Gorgol the Handy in repelling the Republic's siege. When Republic troops appeared to retreat, Gorgol ordered two droid squads to determine if the retreat was genuine. Leading one of these squads, Unit 4432 declared the right flank secure just before Jedi Master Mace Windu destroyed it.