Feature: 1. Our micro step driver adopts imported special chips are used to realize a precise control stepping system 2. The current is automatically halved at rest, with functions such as overheating, overcurrent, undervoltage lockout, and input voltage reverse connection protection 3. With large area heat sink, the micro step driver can dissipate heat in time without damaging the encoder 4. High quality ABS material can make sure the durability and stability of the product 5. The durable micro step driver is suitable for engraving machine, marking machine, cutting machine, laser phototypesetting, plotter, CNC machine tool, holding device, etc Specification: Item Type: Micro Step Driver Material: ABS Humidity: 40-90%RH Vibration: 10-55Hz/0.15mm Storage Temperature: -20~65℃ Input Voltage: DC 9-42V Cooling Method: Natural cooling or forced air cooling Signal Input: Single-ended, pulse/direction Applicable Motor: 4-wire, 6-wire and 8-wire 2-phase hybrid stepping motor with current below 4.0A and outer diameter of 39,42,57mm Applicable Equipment: Suitable for All Kinds of Small and Medium-sized Automation Equipment or instruments, such as: Engraving machine, marking machine, cutting machine, laser phototypesetting, plotter, CNC machine tool, holding device, etc. In equipment where users expect low-cost, high-current operation. Package List: 1 x Code Driver