Reply to Looking into getting a VCI-100. What else do I need?

If I was to get a VCI-100 and Traktor would I also have to purchase a sound card or could I just plug it into my laptop and go. I currently use serato and it has the outboard piece of hardware. I know Traktor has a hardware you can buy for using time code vinyl, but if I am only using a controller is it necessary to get it?