FISTERS Mach3 USB 4 Axis CNC Motion Control Card Breakout Board 400KHz Support Windows 7 Support all versions of Mach3,Support system: Windows XP, 2000, Vista, 7. (not including Mac OS) USB jack does not need to install the driver, plug and play under all versions of Windows. Full support USB hot-swappable, USB connection status monitoring at any time. Under Mach3 working state, USB cable unplugs and then plugs in, but also the normal connection. The indicator light indicates various working status, such as USB connection, Mach3 connection and so on. Support spindle speed PWM output; support spindle pulse and direction output; support spindle speed output from 0 to 10V analog voltage