Features • Adjustable Current Selection: Easily select the desired current using the convenient dialing switch for optimal performance tailored to your specific motor needs • Versatile Microstepping Options: Choose from 7 adjustable microsteps to achieve smooth and motion control, enhancing the accuracy of your applications • Automatic Current Reduction: The built-in functionality reduces current automatically, minimizing heat generation and extending the lifespan of your components • Efficient Heat Dissipation: The large area heat sink ensures optimal cooling, preventing overheating during prolonged use and maintaining consistent performance • High-Frequency Interference Resistance: Designed to withstand high-frequency interference, ensuring reliable and stable performance in various environments Features: 1、The current is selected by the dialing switch. 2、Seven kind of micro？steps are adjustable. 3、Automatic half current reduces heat. 4、Large area heat sink can effectively dissipate heat. 5、Strong resistance to high frequency interference. Specification: Description: This Stepper Motor Driver provides over heat, over current and short circuit protection. Seven kind micro steps can be adjusted. Large area heat sink can effectively dissipate heat. Features: The current is selected by the dialing switch. Seven kind of micro-steps are adjustable. Automatic half current reduces heat. Large area heat sink can effectively dissipate heat. Strong resistance to high frequency interference. Input voltage anti-reverse protection. Over heat, over current and short circuit protection. Specification: Input voltage: DC9-40V Input current: 5A(recommended) Output current: 0.5-4A Max. power: 160W Micro-step: 32 micro step Size: Approx. 9.5*7*2.7cm / 3.7*2.7*1inch Weight: 148g Quantity: 1pc Package List: 1 x Stepper Motor Driver Note: 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. Package List: 1 x Stepper Motor Driver Package List 1 x Stepper Motor Driver