Reply to Question about the VCI-100 SE

Sorry guys if this is covered elsewhere, but I have looked and can't find anything, maybe it's so obvious no-one has bothered mentioning it...

From looking at the videos etc. it looks like the VCI-100 SE uses the fader knobs for stuff other than actually fading the tracks. So, do you have to use an external mixer, or can you use the VCI-100 SE as part of a simple [laptop - VCI-100 - soundcard] setup?