... low power consumption 2.High microstep,high torque 3.broad voltae range 4.wide output current range:0.3-8V Characteristics:1. ... +,DIR-:Stepping motor direction input, voltage level touched off,high towards, low reverse7,ENA+,ENA-: motor free .NOTE:1 ... )1.31.82.32.73.23.74.24.5 3,Full current or half current choice:SW4:0=Full ... dimension Stepping motor driver,1.3A-4.5A,high quality and reasonable price