The used Redrock Torque Motor V1 from Redrock Micro is a motor for the microRemote remote focus system.
It can be used as a single motor focus system or multiple motors in a FIZ (focus, iris, zoom) configuration. The Torque Motor is also a great second motor for kits where a more compact lightweight motor is needed, such as gimbals, steadicam, or rigging. It is compatible with most digital focus systems using the 7-pin interface, including the Redrock microRemote, Preston, Bartech (digital), Arri, and C-Motion.