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 laptops and tablet computers. All input signals are optically isolated; emergency stop, tool setting, limit switches, and home return functions can be connected to ensure computer security. Inputs can be connected to a mechanical switch or NPN-type proximity switch (normally open). 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 optocoupler relay modules to control functions such as water cooling and spray. Maximum output frequency of 100kHz per axis. Compatible with common anode or common cathode drivers with 5V input level, suitable for stepper or servo motor drivers with optocoupler inputs (pulse and direction). Includes a 5-axis interface cable socket (XH2.54) for easy connectivity. Product appearance, color, and printed markings may vary slightly between batches, but functionality remains unchanged. Color: Green. Material: PCB. Package Contents: 1 x Breakout Board, 1 x USB Cable. The package includes only the items listed above. Other accessories are not included. Note: Lighting conditions and monitor settings may cause slight variations in the color shown in images compared to the actual product. Measurement error allowed is +/- 1-3 cm.