A6350 Ultra Torque High Speed Brushless HV Servo (SPMSA6350)

The Spektrum A6350 Ultra-Torque High-Speed Brushless HV Servo is a high-voltage performance servo designed for demanding RC models. It operates from 6.0 to 8.4 volts and delivers about 61.4 kg-cm of torque with a speed of 0.095 seconds per 60° at 8.4V, making it well-suited for giant-scale planes, 3D birdfighting, or jet models that require plenty of power and rapid response.

Built around a durable brushless gear train with all-metal gears and dual bearings housed in an aluminum case, this servo stays cooler under load and provides long-lasting operation. It features soft-start to protect components during power-up, over-current and temperature protection, an initialization tone, and an integrated failsafe that holds position if the signal is lost while power remains. Operating at 200–333 Hz, it offers reliable, high-performance control in standard servo size for demanding airframes.