MACH3 Interface Board CNC 5 Axis With Optocoupler Adapter Stepper Motor Driver MACH3 USB Features: 1. Fully support control via parallel port, such as MACH3,etc. 2. USB power supply and external power supply are seperate for safety. 3. External power supply input: 12-24V. Equiped with anti-reverse connection function. 4. All input signal will be isolated Read more about MACH3 Interface Board CNC 5 Axis With Optocoupler Adapter Stepper Motor Driver MACH3 USB[…]