That is correct, each individual output can be either single ended or differential output. You just set the jumpers for what you want on each output. Also the new version of the lower board (P12S) that I got with my P12D has 2 RJ45 jacks on it for some DMX features that are coming out in the near future. Ed is putting a lot of thought into his designs with future enhancements in mind. I would love to hear what is the longest distance that someone has gotten the differential output to run so far?