Olive Studio supports two output devices: Enttec DMX Pro and Lynx DMX Dongle. These devices actually share the same interface with the computer, so they are automatically both supported. Olive will eventually support all of the popular interfaces.
The Enttec DMX Pro module and Lynx DMX Dongle are examples of output devices. Other output device examples include LOR controller interfaces, Cosmic Color Ribbon controllers, D-Light and Firefli, Renard, PixelNet, LEDTRICKS, etc. An output device is anything that interfaces directly between your computer and a data protocol.