... ,low power consumption 2.High microstep,high torque 3.broad voltae range 4.wide output current range:0.3-8V Characteristics:1. ... /32,1/64,1/128,1/2561/5,1/10,1/25,1/50,1/125,1/2504.Protect ... pulse input+5V (Rising edge effective , rising edge duration >10μS)6,DIR +,DIR-:Stepping motor direction input, voltage level ... installation dimension Stepping motor driver,1.3A-4.5A,high quality and reasonable price