Description: Support MACH3 Software Support Windows XP, WIN7, WIN8, WIN10, 64-bit system, tablet PC Outside voltage input wide: 12-24 V, with anti reverse function 4 output ports can be connected with optocoupler relay module, cooling water control, spray, etc PWM output can be controlled with optocoupler input PWM axis speed governor Specification: Material: PCB Circuit Board Size: Approx. 10 ×10 ×10 cm/ 3.94 ×3.94 ×3.94 inch With optocoupler input motor stepper Provide plug 5-axis interface cable, convenient for connection To protect computer, all input signals are connected by optical coupling insulation, mergency stop button can limit and back to 0 Package Includes: 1 Piece of MACH3 Interface Board 1 Piece of USB Cable