Item Type: Step Motor Driver Product Material: Aluminium Alloy Product Model: M542-05 Input Voltage Range: DC 20-50V Maximum Current: 4.2A Adapted Motor: For 57 series motor. Product Application: Suitable for various small and medium sized automation equipment and instruments, such as engraving machine, marking machine, cutting machine, laser processing, CNC machine tool, automatic assembly equipment, etc. The application effect is particularly good in the equipment where users expect low cost, low noise and high speed. Package List 1 x Step Motor Driver Please use to confirm that the access voltage is within the product voltage range, otherwise it will cause damage to the equipment. 1Easier Control: In line 8 bit DIP switch, that is, DIP switch, brings great convenience to the drive current control and subdivision. 2High Efficiency: Built in sub score can achieve high score results under low score conditions, ensuring smooth running at low speed. 3Extensive Using: For various small and medium sized automation equipments, such as engraving machine, CNC machine tool and so on. 4Simpler Wiring: PCB terminal makes both installation and maintenance much easier, and the time saving wiring can be quickly finished. 5Long Life Span: The application of premium materials give the step motor driver long service life that can get to 100,000 times.