Product Details:TB6560 3A Driver BoardCondition: NewWorking voltage dc 10v - 35v(recommended DC24V power supply )Using 6n137 high speed deviceUsing Toshiba TB6560AHQ original chips with low pressure off parking， overheating and over current protection circuit， ensure optimal performanceMaximum output: �� 3A， peak 3.5ASuitable for 42，57 step within 3A two phase/four phase/four lines/six step motor， not suitable for motor more than 3AAutomatic half flow functionSegmentation: whole step， half step， 1/8 step， 1/16 step， the biggest 16 segment.Volume: 50 X 75 X 35mmCurrent level adjustable， meet your various application requirements.Heat dissipation is good.Color is GREEN， shown as picturesPLS NOTE that due to lighting effects， monitor's brightness / contrast settings etc， there could be some slight differences in the color tone of the pictures and the actual item! Package Included:1 x Driver Board