High torque programmable digital standard servo 63g with titanium gear and wide input voltage range 4.8-8.4V, 2xBB, ideal for large model aircraft, 1:10 RC cars, etc. Torque 13.0kg.cm, speed 0.23s/60° at 4.8V, torque 15.0kg.cm, speed 0.21s/60° at 6.0V, torque 18.0kg.cm, speed 0.20s/60° at 7.4V, torque 20.0kg.cm, speed 0.17s/60° at 8.4V. Aluminium middle case heatsink for perfect cooling under high load