This is the MG90S 9G Metal Gear Micro Servo (1)

This servo motor is a micro size 180 degree analog servo with metal gears and robust construction. This motor works well for basic servo experimentation and can be used in applications where small size is a virtue and that don’t require a huge amount of torque, but they are still pretty strong. This servo motor is comprised of a DC motor, gears, a potentiometer to determine its position and a small electronic control board. By using the motor you can command it to go to a specific position. Because of this usual go-to motor can also be commanded when accurate positioning is needed, such as for turning the front wheels on an RC model for steering or pivoting a sensor to look around on a robotic vehicle.

Package Includes:
1x MG90S Servo motor with attached 240mm control cable
3x arms for various interface applications
3x screws for mounting arms to the servo and mounting the servo

Features

• Very small micro size (22.8×12.2×28.5mm)
• Fairly strong, can lift 1.75kg positioned 1 cm from centre of shaft
• 180 degree rotation
• Sturdy metal gears
• Analog drive
• Operating voltage: 4.8 to 6V.