You will be Buying one License for Mach4-Industrial.

IMPORTANT NOTE: The LICENSE will only work for the Computer for which you supply the PC ID at checkout. Each PC has a unique ID code and the license works in coordination with this code.

Mach4 is not designed for a specific motion control device and will need a plugin and

motion control board to operate a CNC system.

Mach version differences/Features – What is the difference between Mach3 and Mach4?

Mach VERSION DIFFERENCES (217 downloads)

This breakout board is recommended:

6-Axis Step/Direction Ethernet Motion Controller, Industrial Version