Feature●HIGH QUALITY: The DM542 digital stepper motor driver adopts the latest 32-bit DSP technology, suitable for driving 57 and 86 series motors.●GOOD DESIGN: Stable running and low noise under medium-low speed, and precise current control greatly reduces the motor heat.●ADVANTAGE : Optical isolation input, strong anti-interference ability. With over-voltage, over-current protection.●FUNCTION: Integrated with parameter self-tuning function, which can automatically generate optimal operating parameters for different motors.●SATISFACTION GUARANTEE: We care for every customers feeling.If this product does not meet or exceed your expectations,please send it back for a 100% refund no questions asked.Description