This is the Futaba BLS471SV Brushless S.Bus2 Programmable Digital High Voltage Car Servo.
Specifications:
- Speed:
- Torque:
- @6.0V: 158.4 oz-in (11.4 kg-cm)
- @7.4V: 191.7 oz-in (13.8 kg-cm)
- Size: 40x20x36.8mm
- Weight: 57g
- Rated Voltage: DC 6.0V-7.4V
- Operating Voltage: 4.0V-8.4V