- What do you hope to do with the mixer and Traktor; how do you with to use the mixer in this setup?
The DJM 700 does not have a USB port or a built in sound card so you have to have a external soundcard to route your audio.
The Audio 4/6/8/10 are all great sound cards by NI and they have MIDI ports too.
So...You hook your CDJ's to your laptop for HID support in Traktor. Now you hook the sound card to your laptop and the sound card to your mixer.
The picture below should sum it up for you.