This is the Hitec HS-5070MG Digital Ultra Torque Feather Servo.
FEATURES
Ideal for fast park flying models, micro airplanes, MAVs and 1/18 scale R/C cars
7.4V high voltage digital servo
2S LiPo (6-cell NiMH) compatible
Four metal gears with one ball bearing
Programmable
INCLUDES
HS-5070MG Digital Ultra Torque Feather Servo, 1.02" (26mm) 4-PointHorn, 1.4" (35mm) Double Arm Horn, 0.79" (20mm) Single Arm Horn
Four 1.5 x 17mm Screws
SPECIFICATIONS
4.8V 6.0V
Speed: 0.15 sec/ 60° 0.17 sec/60°
Torque: 43.28oz/in (3.1kg/cm) / 53.06oz/in (3.8kg/cm)
Weight: 0.44oz (12.5g)
Dimensions: 0.92 x 0.45 x 1.14" (23.6 x 11.6 x 29mm)