A link to a computer is a link between the mixer and the computer! If you need audio input from your computer to the mixer, just buy a 3.5MM cable with a pair of RCA plugs. Plug the 3.5mm stereo into the computer headphone outlet, RCA Lotus left and right into the input channel of the mixer, push up the road fader on it! If you're recording on a computer, you'll need at least one sound card to get the job done.