Check the listing for details. Cube Mars R100 Kv90 Robot Motor. Condition: New – Open box. Listed at 200.00 USD. The Cube Mars R100 Kv90 Motor is a specialized motor designed for industrial robotic arms, specifically for use in robotics controls. This model is known for its high-quality performance and reliability, making it a popular choice for businesses and industrial automation applications. With a focus on precision and efficiency, the Cube Mars R100 Kv90 Motor is an essential component for maintaining the functionality and performance of complex robotic systems.