mks777This is an MKS HV777 Coreless Titanium Gear Hh Torque Dital Servo with an Aluminum Upper Case. Specifications: Torque: @6.0V: 344.4 oz-in (28 kg-cm) @7.4V: 395.7 oz-in (36.5MKS Servo with Full Aluminum Case and Titanium Gears. The MKS HV Hh Voltage Servo series is desned to operate at hh voltage and low current, delivering hher torque per unit weht.