Quote Originally Posted by dazp1976 View Post
Read my post#3.
If your breakout board has both parallel and usb, the usb is likely NOT a control. Likely a power source only. The parallel is the control part.
Can we agree that there's insufficient information at this time and OP should follow the request of yours from post 2 and provide a picture.

For what it's worth - I do look in the background for queries like this (particularly if they fall within a 30 mile radius of me), but I've seen photos of the controller cards associated with CNCest with integrated USB controllers and stepper drivers on a single board, through to USB controllers with individual stepper drivers. I follow the logic of the direction you're heading in but let's start with the basics and ask the OP to open the control box and take a photo. Without that, we're all wasting time.