Features:
High performance digital standard servo
High-precision Taiwan-made metal gears
High quality brushed motor
Dual ball bearings

Specifications:
Dead band: 2μsl
Working frequence: 1520μs / 330Hz
Dimensions: 40.5X20.2X44.2mm /1.59 X0.80X1.74in 
Weight:  55.6 g (1.96oz) 
Connector Wire Length: JR  265 mm (10.43in) 
Operating Voltage:  DC4.8~6.0 V 

At 4.8v
Operating Speed: 0.15sec/60 degrees 
Stall Torque: 8.89kg.cm (123.48oz/in) 

At 6.0v
Operating Speed: 0.12sec/60 degrees 
Stall Torque:  9.98 kg.cm (138.62oz/in)