PC based Controllers with USB?

I have not yet seen a USB based PC controller. Anybody know of one? What are the performance characteristics of the USB, as opposed to parallel or serial port controllers? Is this a practical approach to take for machine control?


Also one comment about the Vector Cad-only offer. It does work with Vfontz, and Vector can then export 3D DXF files with machinable tool paths for engraving tru-type letters with a V tipped cutter.

Best Regards, Fred Smith- IMService
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