1、It can drive three 2.5A stepper motors at the same time. It is convenient for you to expand the 5th axis when you need 5-axis processing. 2、High-speed Optocoupler DCDC is totally isolated, which really protects your computer. 3、Spindle relay output, easy to use Mach3 and other software to control the start and stop of the spindle. 4、Half-current control function can effectively reduce the current to the lowest when the motor stops 5、With fan interface, fans can be added at will. Feature: It can drive three 2.5A stepper motors at the same time. It is convenient for you to expand the 5th axis when you need 5-axis processing. High-speed Optocoupler DCDC is totally isolated, which really protects your computer. Spindle relay output, easy to use Mach3 and other software to control the start and stop of the spindle. Half-current control function can effectively reduce the current to the lowest when the motor stops With fan interface, fans can be added at will. It has 4 channels of 0.8-3.5A (peak value) adjustable current rated output two-phase bipolar stepper motor drive. Standard parallel interface, supporting a series of software such as MACH2, KCAM4, etc With four-way limit interface, the plug-and-pull joint design is convenient for you to understand the limit switch. Supporting four working modes: mixed mode, fast mode, slow mode and normal mode. Supporting four subdivisions: 1, 1/2, 1/4, 1/16. 24-36V single power input uses switching power supply chip as 5V power supply, stable and fever is small. Specification: Model: TB6560 Type: 3-Axis Working model: Mixed mode, fast mode, slow mode and normal mode Weight: 611g / 21.6oz Package list: 1 * Stepper Motor Driver 1 * Parallel wire Note: The actual product color may deviate from the photo due to light. There may be a slight deviation in the measurement of product.