MG90S Micro Metal Gear Servo 180°/360° RC Robotics Arduino

Upgrade your RC vehicle, robot, drone, or DIY project with the MG90S Micro High-Torque Servo Motor — the improved successor to the popular SG90. Featuring precision metal gears and full ball bearings, this compact servo delivers reliable, high-torque performance in a lightweight package with minimal noise.

Whether you're building a mini car, helicopter, boat, airplane, or a custom robotics project, the MG90S handles it all. Its versatile 180° or 360° rotation modes make it suitable for steering, throttle control, camera gimbals, robotic arms, and much more.

Key Features

• Metal Gear Construction — Far more durable than standard plastic gears; withstands heavy loads and repeated use
• Full Ball Bearing — Smooth, precise movement with reduced friction and wear
• High Torque Output — 2.0 kg/cm at 4.8V, up to 2.5 kg/cm at 6.0V
• Fast Operating Speed — 0.11 sec/60° at 4.8V; 0.10 sec/60° at 6.0V
• Compact & Lightweight — Only 32 × 12 × 32 mm; fits virtually any small-scale RC or robotics build
• Wide Voltage Range — Operates on 4.8V to 6.0V, compatible with most RC receivers and microcontrollers
• Low Noise — Engineered for quiet, smooth operation
• Universal Compatibility — Works with RC cars, boats, helicopters, fixed-wing aircraft, Arduino, Raspberry Pi, and more

Specifications

Compatible With

• Mini RC Cars, Boats, Helicopters & Airplanes
• Arduino & Raspberry Pi Robotics Projects
• DIY Drones & UAVs
• Camera Gimbal Systems
• Kids' Toy Upgrades & STEM Educational Kits

What's in the Box?

• 1 × MG90S Metal Gear Micro Servo Motor

Made in Mainland China.

Looking to build out your RC or robotics project further? Check out these related items from our store:

• 1/10 RC Car Negative Pressure Shock Dampers – Metal Pack of 2
• 1.0" Beadlock Wheel Hubs 4pcs for RC Crawlers TRX4M SCX24

For guidance on safe use of electronic components and hobby electronics, visit the U.S. Consumer Product Safety Commission (CPSC) for product safety standards and best practices.

Frequently Asked Questions

Q: What is the difference between the MG90S and the SG90 servo motor?

A: The MG90S is an upgraded version of the SG90. The key improvement is the use of metal gears and full ball bearings in the MG90S, which provide significantly greater durability, higher torque (up to 2.5 kg/cm), and reduced noise compared to the plastic gears found in the SG90. It's a direct drop-in upgrade for most builds.

Q: Is the MG90S servo compatible with Arduino or Raspberry Pi?

A: Yes! The MG90S operates on 4.8V–6.0V and uses a standard 3-wire PWM interface, making it fully compatible with Arduino, Raspberry Pi, and most microcontroller development boards. Simply connect the signal, power, and ground wires to your board and control it with a servo library.

Q: Can the MG90S servo do continuous 360° rotation?

A: The MG90S is available in both 180° standard and 360° continuous rotation configurations. The 360° version is ideal for wheel-drive robots and applications requiring full continuous spin, while the 180° version is best for steering and positional control in RC models.

Q: What RC models is the MG90S recommended for?

A: The MG90S is best suited for small-scale RC models including mini cars, boats, helicopters, and small fixed-wing aircraft. It is not recommended for large fixed-wing planes or large electric helicopters, as those applications typically require higher-torque standard or digital servos.