i would say there is no set sample rate, it feeds whatever your program is set at, an d evidently communicates with the pc on this issue
i would say it wouldnt be possible to use it with anything but a lappy, because i use my pc to also select which inputs i was to record, wether it be a multi setting or just 1+2 (the mic inputs) or just a/pdif input
im going to be multitracking hopefully in 2 weeks the band i archive for
just need to find another a/d to borrow, as i believe the extra analog inputs arent active when you use mics