Problem:

Enttec USB DMX PRO

Solution:

The Enttec USB DMX PRO is supported on Windows and Mac platforms.
For Windows you don't have to do anything special.
For Mac OSX 10.11 or above you need a special extension D2xxHelper. You can download that helper here:
http://www.ftdichip.com/Drivers/D2XX/MacOSX/D2xxHelper_v2.0.0.pkg
After installation you need to reboot your machine. It should now appear in Preferences -> DMX -> DMX Interface.

Know that the Enttec USB DMX PRO Mk2 is not supported by MediaMaster.