This is the Futaba BLS371SV Brushless S.Bus2 Programmable Digital High Voltage Nitro Car Servo.
Specifications:
- Speed:
- Torque:
- @6.0V: 219.5 oz-in (15.8 kg-cm)
- @7.4V: 263.9 oz-in (19 kg-cm)
- Size: 40x20x36.8mm
- Weight: 63g
- Rated Voltage: DC 6.0V-7.4V
- Operating Voltage: 4.0V-8.4V