I agree it's probably not needed, but since I had strange issues with going from Zeus to Zeus ... I found that I had to use an active hub to split the pixelnet signal to feed Zeus groups 1 and 2 since they could not play well together for unknown reasons. I had an extra active hub to do that (my spare) but the pixelnet splitter could have done the same, but it died after a day of use and not sure why other than the power cord came detached and it probably blew something since the unit has no fuse.