External wide voltage input, 12-24V, with anti-reverse function. Supports various versions of MACH3 software, including the latest version. Compatible with Windows XP, Windows 7, Windows 8, and Windows 10, including 64-bit systems. Works with desktops, laptops, and tablet computers. All input signals are optically isolated. Emergency stop, tool setting, limit switch, and home return functions can be connected to ensure computer safety. Inputs can be connected to a mechanical switch or a proximity switch (normally open, NPN type). Features optocoupler-isolated 0-10V analog voltage output for controlling 0-10V input inverters to regulate spindle speed. Provides PWM output (5V level) for connection to PWM-controlled spindle speed controllers. Includes 4 output ports (5V level) for connecting to optocoupler relay modules to control coolant, mist, and other accessories. Maximum pulse output frequency up to 100kHz per axis. Compatible with common anode or common cathode drivers. Input level is 5V, suitable for stepper or servo motor drivers with optocoupler inputs (pulse + direction). Equipped with a 5-axis interface cable socket (XH2.54) for easy connection. Note: Due to different production batches, the product's appearance, color, and printed markings may vary slightly but will not affect functionality. Color: Green Material: PCB Package Contents: 1 x Breakout Board 1 x USB Cable Please note: Only the items listed above are included. Other accessories shown in images are not included. Differences in lighting and display settings may cause slight variations in color between the product image and the actual item. Measurement error allowed is +/- 1-3 cm.