This is the Hitec HSB-9370TH Brushless Digital Multi Purpose Servo.

FEATURES: Ideal for airplanes, helicopters, 1/10 and 1/8 scale on- and off- road vehicles Titanium gears with dual ball bearings High performance, brushless motor designed by Steve Neu Programmable features include, Fail Safe On/Off and Position, Direction, EPA, Speed (Slower), Dead Band, and Soft Start (downloadable software and DPC-10 PC Interface (HRPC4426) required) Ultra hard gear shaft with three axial metal bushings Water and dust resistant Diamond cut aluminum center heatsink, red in color Metal/Plastic/duralumin hybrid first gear prevents electrical noise from affecting other components in the aircraft or vehicle PAD (Power Absorbing Device) prevents backflow of current when voltage regulators or receivers with voltage regulators are used Two year limited warranty through Hitec beginning at date of purchase

INCLUDES: HSB-9370TH Servo with PAD (Power Absorbing Device), Instruction Sheet, extra 3x8mm Servo Horn Screw, Mounting Hardware, 0.95" (23mm) Single Arm Horn 1.2" (32mm) Single Arm Horn 1.4" (36mm) diameter Round Horn 1.5" (38mm) 4-Point Horn 1.7" (44mm) Double Arm Horn 2.8" (72mm) Double Arm Horn

SPECS:

6.0V 7.4V Speed: 0.12 sec/60ë 0.10 sec/60ë

Torque: 347 oz-in (25 kg-cm) 347 oz-in (25 kg-cm)

Dimensions: 1.57 x 0.79 x 1.50" (40 x 20 x 38mm)

Weight: 2.40oz (68g)

Number of Teeth in Spline: 25