This is Xpert RC WR-6601 Waterproof "Mega Torque" High Voltage Brushless Servo.
Feature:
- Full waterproof
- Brushless motor design provides extremely high speed, top efficiency, and low power consumption.
- 4096 resolution and SIC (Single Integrated Circuit) for the highest performance and durability.
- Light weight design
- All Aluminum case for the best thermal dissipation and durability.
- Strong Metal Gear
- Glitch-free
- Sophisticated error correction
- High-Speed, High-precision 12-bit AD converter and CPU calculation
- Fail safe
- Over current protection
- Over temperature protection
- Start sonorant
Weight: 70.3 g
Speed:
- @6.0V: .154 sec/60
- @7.4V: .125sec/60
- @8.4V: .118 sec/60
Torque:
- @6.0V: 18.57 kg-cm (257.75 oz-in)
- @7.4V: 22.91 kg-cm (317.99 oz-in)
- @8.4V: 26 kg-cm (360.88 oz-in)
Matching Gear Set: XGS7291S
Matching Case: XP-05