Greetings,,,
One dongle can put out 512 channels of information. Then you decide how to handle those channels with various items. You could have 4 FreeStyles with 32 non-DMX SSR4s each, or some 16 channel Lynx Expresses, etc. Or mix and match. You could even have multiple units that use the same channel information, but then they wouldn't be separate as to when they blink, dim, etc.
You can have multiple dongles on a computer, each with a universe of info, until you max out your computing power, but you need to test something like that to see what your max is. And it would take lots of time to program.
Clearer?
Keith