This is the Savox SH-1357 Mini High Speed Digital Servo.
Features:
- Light weight
- Coreless Motor provides high speed, incredible efficiency, and low power consumption
- The Aluminum Case design not only looks good but also allows for lower operating temperatures.
- Totally Green – from materials to production, these servos are environmentally friendly.
- Ideal as a rudder servo on 450 class helis, and as a CCPM servo on 500 class helis.