Chauvet DJ Xpress-512S USB DMX Interface

Xpress-512S connects ShowXpress lighting software on Windows or macOS to a real rig. It outputs one full DMX universe over 3-pin XLR and unlocks a second universe over ArtNet, 1,024 channels in total, and further interfaces stack for more universes.

It is hot-swappable and reconnects automatically within seconds, which matters when a USB cable gets knocked mid-show. The housing is aluminum rather than plastic, refresh rate is 40 Hz, and it bus-powers from USB at 5 V with no supply to lose. At 0.2 lb and 2.9 x 1.4 x 1.4 inches it lives in a laptop bag.