This is the Savox SA-1230SG Monster Torque Steel Gear Digital Servo.
SAVSA1230SG Savox CORELESS DIGITAL SERVO 0.16/500 @6V
Combines leading edge technology with super high 12 bit (4096) resolution and unique steel gears.
Coreless motor provides extremely high speed, incredible efficiency, and low power consumption.
Extremely strong unique steel gears ensure long-life and durability.
The full aluminum case design not only looks good but also allows for cooler and smoother operating temps.
Our servos are totally green – from materials to production, these servos are environmentally friendly.
Ideal for giant scale aircraft, monster truck, 1/8 scale.
Speed(@4.8V sec/60): .20
Torque(@4.8V oz-in): 416.6
Speed(@6.0V sec/60): .16
Torque(@6.0V oz-in): 500.0
Gear: Unique Steel
Case: Full Aluminum
25 Tooth Spline
Pulse Width Frequency: 1520