1.High performace,low power consumption 2.High microstep,high torque 3.broad voltae range 4.wide output current range:0.3-8V Characteristics ... /16,1/32,1/64,1/128,1/2561/5,1/10,1/25,1/50,1/125,1 ... protected : When the double-phase electrical machinery is connected with driver , users are apt to connect the phase by ... dimension Stepping motor driver,1.3A-4.5A,high quality and reasonable price