The MKS HBL6625 Wing Servo.

High voltage, brushless, powerful - and the wing servo of choice for the F3f World Record Holder!

Torque:  8.2 kg-cm (6.0V)   /   9.6 kg-cm (7.4V)  /   10.4 kg-cm (8.2V)

Speed:  0.16 s  (6.0V)   /   0.127 s (7.4V)  /   0.11 s (8.2V)

Weight: 27.85 g

Dimension：30 x 10 x 35.5 mm
Working Voltage：4.8~8.4 V DC Volt (2S Lipo un-regulated)
Working frequency：1520μs / 333hz
Dead Band：0.001 ms (Default)
Bearing：Dual Ball Bearings
Motor：Brushless Motor
Gear：Chrome-Titanium alloy gear