This is a Hitec D956WP 32bit High Torque Waterproof Steel Gear Digital Servo.
This IP-67 rated version is the true waterproof, dust resistant upgrade for 1/10th-scale Rock Crawlers and Off-Road Trucks.
This technologically-advanced servo is powered by Hitec's 32-bit MCU (Microcontroller Unit) and 12-bit ADC (Analog to Digital Converter) industrial science and possess Smart Sense engineering with rapid, high resolution response. The unprecedented programmability and wide-voltage capabilities deliver the most progressive, leading-edge performance for all your radio control needs. With incredibly durable steel gears, dual ball bearing and hardened steel output shaft, the high-end performing D956WP produces the mighty torque and reliability required to take bashers to the next level.
Programmable PWM Digital Amplifier
32-Bit MCU with 12-Bit ADC Circuitry
1M Cycle Long Life Potentiometer
Wide Operating Voltage (4.8 ~ 8.4 Volts DC)
Dual Ball Bearing Supported Output Shaft
25-Tooth Output Spline
Coreless Metal Brush Motors
Nylon Reinforced Plastic Upper and Lower Case
Diamond Cut Aluminum Heat Sink Center Case
Water Resistant and Waterproof Proof Case
Operating Voltage Range: 4.8V ~ 7.4V (Volts DC)
Speed: 0.19 - 0.12 (Second @ 60deg)
Maximum Torque Range oz. / in.: 251 - 405
Maximum Torque Range kg. / cm.: 18.0 - 29.0
Weight: 68.0 (Gram)
Dimensions Metric: 40.0 x 20.0 x 37.0
(1) D956WP 32-Bit, High Torque, Waterproof, Steel Gear Servo