... 0.9A-3A voltage range:18VDC-40VDC Characteristics:1.DC power input type24V~36V2.Output current:0.9~3A3.Mircostep:1(1.8º),1/2,1/4,1 ... /8,1/16,1/32,1/644.Protect form : Overheated ... 2-Phase Mircostepping Motor Driver Switch Choice: (“ON=0,OFF=1”)1.Microstep choice M110101010M211001100M311110000Micro11/21/41/81/161/321/64____2. ...