Hitec625HS....the hs stands for high speed....in case your wondering
Operating Speed (4.8V): 0.16sec/60 degrees at no load
Operating Speed (6.0V): 0.13sec/60 degrees at no load
Stall Torque (4.8V): 76.37 oz/in. (5.5kg.cm)
Stall Torque (6.0V): 94.43 oz/in. (6.8kg.cm)