Part Number: SC09 Servo 2.3 kg Serial Bus Servo, Two-way Feedback, Servo/Motor Mode Switchable, Conpact Size, 300° Rotation Angle Servos will provide various feedback like position, load, speed, input voltage for advanced projects requiring closed-loop automatic control. Ideal choice for building quadruped robots, hexapod walkers, robotic arms and other robotic projects requiring multiple servos. Ingenious combination of the two, lower operating noise, better stability and mechanical performance