mks777The MKS HV777 was the first MKS servo that I tried, and I have never looked back since. MKS already known in other flying circles, such as helicopters and gliders, they have done an amazing job now on their plane series too.MKS 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.