Futaba HPS-A703 – S.BUS2 High-Voltage Standard Size Airplane Servo High Performance Standard Size Servo with Brushless Motor FEATURES: For all-purpose giant scale airplanes Programmable/HV Brushless Servo Custom New high power Brushless Motor Suggested upgrade for BLS172SV/177SV Programmable and compatible with S.Bus and S.Bus2 systems Can be connected to a PC using the CIU-2/-3 USB adapter sold separately Final gear material is Stainless Steel Upper/middle/bottom: Aluminum Case SPEED: 0.13 sec/60°at 6.6V 0.12 sec/60° at 7.4V TORQUE: 61 kg/cm at 6.6V 66 kg/cm at 7.4V SIZE: 40.5 x 21 x 39.4 mm WEIGHT: 82 g RATED VOLTAGE: DC 6.0V-7.4V OPERATING VOLTAGE: DC 4.8-8.4V