Repulsorlift motor
Repulsorlift motors were droid components included in Ulqib MicroTronics' droid customization kit. When installed, droid were able to use the repulsorlift motor to move around.
Repulsorlift motors were also built into the repulsor throwing razor. They enhanced the range and damage of the weapon, and were a part of the retrieval system in tandem with a homing transponder.
Appearances
"Ain't Science Grand?" – Star Wars: The Roleplaying Game (as repulsor motor)