Feature: The motor driver is powered by 24-40V DC to adapt to the harsh grid environment of power supply system. Products are widely used in: engraving machine, laser equipment, labeling machine, electronic equipment, packaging equipment.Suitable motor: outer diameter 42-56mm series stepper motorThe current control is smooth and precise, the motor has low heat, low noise and low vibration.The drive current is adjustable from 1.0A to 4.2A, 8 level adjustable and the usability is strong.Specification:Model: TB6600Voltage: DC24~40 VDriving current: 1.0~4.2A/phase 8 level adjustableSubdivision: the highest resolution 3200 steps / rev 5 level adjustableSuitable motor: outer diameter 42-56mm series stepper motor Size: Package list:1 x Motor driverNote:The actual product color may deviate from the photo due to light.There may be a slight deviation in the measurement of product..Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.