Not sure I will be of any help, but I just thought it interesting that I had looked at that board just the other day in my search for a MC that has built-in 0-10V output for spindle speed control. It looks like that board is designed for Mach3 and probably includes a plug-in to run it. However, I do not believe that Mach3 plug-ins work in Mach4 and there may not be any available for Mach4 at this time. This is not a driver or .xml file. It is a module that essentially becomes part of the Mach3 software and provides the communication path to the control box through the USB. There are Mach4 specific products out there but it doesn't look like this is one of them, sorry to say. Unfortunately there a fundamental differences between Mach3 and Mach4 due to what appears to be a complete redesign of the core architecture of the software so you definitely need to either revert to Mach3 to use this board or find a different board that is Mach4 compatible.
Stephen "Highspeed" Kruse