mks777HV777A+ Aluminum upper Casing (0.1 sec60° - 40.40 kg.cm (561.1 ozin) @8.2V).This is an MKS HV777A+ Coreless Titanium Gear Hh Torque Dital Servo with an Aluminum Upper Case. Specifications: Torque: @6.0V: 409.7 oz-in (28 kg