Waveshare ST3215 Series Serial Bus Servo, High Precision and Torque, with Programmable 360 Degrees Magnetic Encoder, Two-Way Feedback, Servo/Motor Mode Switchable, 19.5kg.cm@7.4V Torque

Torque: The ST3215- 7.4V serial bus servo delivers a torque of 19.5 kg. cm at 7.4V, making it suitable for a wide range of medium-load applications that require precise control.
^^ Operating Voltage: Designed for use with a voltage range of 4V to 7.4V, this servo offers flexibility in powering and is ideal for lower-voltage systems.
^^ No-Load Speed: It achieves a no-load speed of 0.192 seconds per 60 (52 RPM) at 7.4V, providing quick and responsive movement for applications that require fast rotation.
^^ Current Consumption: The servo operates with a no-load current of 150mA and a locked-rotor current of 2.5A, ensuring efficient performance while minimizing power consumption.
^^ Encoder and Feedback: The servo features a 360 magnetic encoder with feedback capabilities, providing position, load, speed, and input voltage data for precise control and monitoring.