Here's an overview and some details about the MG90S mini digital servo motor:

Type: The MG90S is a digital servo motor, which means it uses digital control signals (usually Pulse Width Modulation, or PWM) for precise position and speed control.

Gear Material: This servo motor is equipped with plastic gears, which are suitable for many hobbyist and low-load applications but may not be as durable as metal gears under heavy loads or stress.

Rotation Angle: The MG90S is capable of continuous rotation, meaning it can rotate indefinitely in either direction, covering the full 360-degree range.

Torque: While the MG90S provides a decent amount of torque for its size, the specific torque output may vary depending on the voltage supplied. Typically, it offers torque in the range of 1.8 to 2.2 kg/cm (approximately 25 to 30 oz/in) at 4.8V.

Voltage Range: The operating voltage for the MG90S is typically in the range of 4.8V to 6V, making it compatible with common power sources like rechargeable batteries.

Control: It supports PWM control, which allows for precise and adjustable control of the servo's position and speed. The PWM signal's pulse width determines the servo's position within the 360-degree range.

Size: The MG90S is a relatively small servo motor, and its compact size makes it suitable for applications where space is limited.