... 2.High microstep,high torque 3.broad voltae range 4.wide output current range:0.3-8V Characteristics:1 ... ~50VDC2.Output current:1.3A-4.5A3.Mircostepping:1(1.8º),1/2,1/4,1/8,1/16,1 ... mistake, thus would damage the driver seriously. The protecting circuit is within this driver, when users connect by mistake, ... jump5,installation dimension Stepping motor driver,1.3A-4.5A,high quality and reasonable price