the site listed 2 controllers
DJ console rmx
Although I could find the DJ console dmx on line I also found the DJ console rmx2 not sure if it is backwards compatible. The work "Deck" is too common of a word to be a useful search. If links or the manufacture were included I may be able to look at that one.
Are there plans to support a more bare bones external controller like Numark iDJLIVE. iTDJ is easy to use and not complicated. This controller is the same. The RMX looks like it has lots of whistles and bells. It may not be the same person in the market for itDJ and the RMX controller.