This is the Savox SV-0220MG High Voltage Digital Servo.
High voltage capable on a budget
Totally Green – from materials to production, these servos are environmentally friendly.
Ideal in planes, 1/8 scale, and 1/10 scale cars and trucks.
Suitable for use in boats and helis
Speed(@6.0V sec/60): .16
Torque(@6.0V oz-in): 90.3
Speed(@7.4V sec/60): .13
Torque(@7.4V oz-in): 111.1
25 Tooth Spline
Valley View RC recommends this servo as a great HV throttle solution.