This is an MKS HV9767 Titanium Gear High Voltage Cyclic Servo with Aluminum Case. This servo is recommended for 500 class helicopter cyclic applications.

Specifications:

• Torque:
• @6.0V: 94.4 oz-in (6.8 kg-cm)
• @7.4V: 118.0 oz-in (8.5 kg-cm)
• @8.2V: 130.5 oz-in (9.4 kg-cm)
• Speed:
• @6.0V: 0.090 s
• @7.4V: 0.078 s
• @8.4V: 0.070 s
• Weight: 38.55 g
• Dimension: 35.5x15x28.5mm  
• Working Voltage: 5.5 ~ 8.4 V DC Volts  (2S Lipo un-regulated)
• Working Frequency: 1520?s / 333hz
• Dead Band: 0.001 ms (Default)
• Bearing: 2BB 
• Motor: Coreless Motor
• Gear: Chrome-Titanium alloy gear
• Electric Current Draw: 2.6A max.(8.2V)?2.4A max.(7.4V)?2.0A max (6.0V)
• Wire Length: 29.5 cm