TB6600 4A Stepper Motor Driver Kit Compatible with 17HS4401 for CNC Milling Machine DC 9-42V power supply, 12-30V power supply is the best<br> The control signal input voltage is 3.3-24V universal (no string resistance required)<br> Subdivision accuracy 1-32 subdivision optional<br> Output current 4.0A<br> H-bridge bipolar constant current drive<br> The upgraded version of TB6600 is a driver suitable for 57/42 type two-phase hybrid stepping motor with phase current below 4.0A.<br> Set 7 kinds of subdivisions (1/2A/2B/4/8/16/32) through 6-bit DIP switch And 8 gear output current (0.5A/1.0A/1.5A/2.0A/2.5A/2.8A/3.0A/3.5A)<br> Widely used in small and medium-sized automation equipment and hardware, Such as: engraving machine, marking machine, cutting machine, laser phototypesetting, plotter, CNC machine tool, crystal grinding machine, automatic assembly equipment, etc.<br> The best application object is 57 stepper motors and 42 stepper motors with a torque of 1.8N.m and below.<br> 1. Input signal high-speed optocoupler isolation<br> 2. Built-in temperature protection and overcurrent protection<br> 3. Automatic half flow to reduce heat generation<br> 4. Motor noise optimization function<br> Tips:The product may be updated constantly ,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use.<br> Colour:As Shown<br> Material:ABS<br> Package Contents:<br> 1 * Stepper Motor Driver Kit<br> Only the above package content, other products are not included.<br> Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.