The Futaba S-U400 Digital Standard Servo is a high voltage, S.Bus2 capable, plastic gear airplane servo. Package includes servo and accessory pack. Specifications: Speed: @6.6V:0.14 sec/60Degree @7.4V:0.13 sec/60Degree Torque: @6.6V:98.6 oz/in @7.4V:109.7 oz/in Size:40x20x36.1mm (1.6 in x 0.8 in x 1.5 in) Weight:1.38oz Gears:Plastic Spline:6mm/25T Motor:3Pole Cored