Mine has the RD controller and software
http://en.rd-acs.com/pro_view.aspx?TypeId=33&Id=21it doesn't need a dongle (well mine doesn't ! ) not sure if that is the case all the time, you'd have to ask them.
I've only had the machine 6 months, and don't use the software for design, just to drive the machine, but it seems very capable.
When I upgrade my other machine, I'll probably get another of their controllers.
On that link .. go to support and downloads, and I think you can download the software to try.
hope that helps
Rich