The port can be added later. Currently you can plug and play with a Hypertherm cnc control (EdgePro, MicroEdgePro, EdgeTi) through the serial port. There also are a few cnc equipment manufacturers that are developing interfaces for the serial link. The serial link allows for remote control of air presure, amperage and diagnostic codes. The port can be added to the machine in kit form at any time.
Jim Colt Hypertherm