1/ sorry for my not so good english...
2/ my question is about the necessity to connect directly multiple Softwares or others (cc controll + touche se + rme + komplete series + etc.
And I have not enough USB connections only with my mac. So my question is : which USB interface I have to use to have the same connection as if, as an example, my CC controller is not connected directly to my mac?
Do you have an advic?,
...I think you understood : it's my first home studio :):):)