Futaba, JR, Sanwa & Hitec compatible. Important Notes: Specify the connector type when you purchase the servo. Refer to the figure when installing the servo accessories. For engine powered airplanes & boats, rubber must be used to reduce vibration. Please choose correct model for your application. Torque over-loaded will damage the servo's mechani SM-. Keep the servo clean & away from dust, corrosive gas & humid air