This is a Futaba HPS-A700 S.Bus Brushless Ultra Torque Airplane Servo.

 
Features:
  • For all-purpose giant scale airplanes
  • Programmable/HV Brushless Servo
  • Custom New high power Brushless Motor
  • Suggested upgrade for BLS172SV/177SV
  • Supports SR mode with T7PX
  • 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
 
Specifications:
Input Voltage: 6-7.4V
Speed @ 6.6V: 0.13 sec/60 deg
Speed @ 7.4V: 0.12 sec/60 deg
Torque @ 6.6V: 944.4 oz-in
Torque @ 7.4V: 1027.7 oz-in
Dimensions: 40.5x21x39.4mm
Weight: 82g (2.89 0z)