uDMX is a DMX Sender Interface originally invented by anyma.ch.

A short list of advantages:

• OpenSource hard- and software
• no special USB chip needed
• thus very cheap
• in a way os-independant: software for MAC by anyma.ch, software for Windows and Linux by me
• using the artnet-receiver-software for uDMX it is possible to connect to all DMX software that send artnet-data

I build a version without smd parts and wrote software for windows and linux. Get the windows driver.