Digital Servo Drive MG92B 13.8G 3.5KG Metal Gear Torque

With double ball bearing and alloy housing in the middle. Upgraded servo and shaft to 6061-T6 aluminum. Stronger and lighter than copper. Compatibility: This is a universal "S" type connector that fits most receivers, including Futaba, JR, Hitec, GWS, Cirrus, Blue Bird, Blue Arrow, Corona, Berg, Spektrum. Small size and perfect price, but with a powerful 3.5 kg of torque. A great choice for F3A, 3D flyer, jet, airplane, helicopter.