Need a little help :D

Ok..first of all I'm new in timecoded things, I usually make out with vinyls but MixVibes is interesting and I want to buy me a sound card and some MixVibes timecoded records..but from where I am you don't have too many choises so the ESI - GIGAPort HD USB sound card took my attention..but there are some facts I don't know about...example: it has 8 output independent channels , but where are the input channels? Or you can convert the output channels like 2 stereo input channels and 2 stereo output channels? Sorry if someones think I'm fooling around but I'm really bad at this timecode thing..thank you 
