1.5 axis CNC breakout board with optical coupler for stepper motor drivers MACH3 compatible Fully supports MACH3 and other software that provides parallel port control USB powered with isolated power domains for peripherals to protect computer security Peripheral input voltage 1224V with anti reverse protection Key benefits Optical isolation reduces electrical noise and protects the computer and controller hardware Broad compatibility with MACH3 and other parallel port control software for easy integration USBpowered design with isolated power domains enhances system reliability and computer security Wide peripheral voltage input (1224V) and anti reverse protection improve safety and durability Applications and use scenarios Retrofit a hobby CNC router or milling machine to be controlled via MACH3 using a parallel port, with safe USBpowered peripherals and isolated power Build a compact standalone CNC setup that relies on parallelport control software while maintaining USB peripheral isolation Educational or training lab setup to demonstrate CNC control concepts, wiring, and safety between computer and machine without compromising computer security