MACH3 Interface Board CNC 5 Axis with Optocoupler latest upgrade 5 axis breakout board is specially designed for the CNC single-axis 2-phase stepper driver controller, such as TB6560, M542, M542H, MA860H, 2M542, 2M982, DM542(A), DM860(A), etc. single-axis stepper driver controller series. With this 5 axis breakout board, any 1-5 single-axis stepper driver controllers can be directly controlled by the PC via the MACH3, EMC2, KCAM4, etc. HALLROAD.ORG.