The X2442USB mixer will only allow a stereo submix of all channels (main left and right) to travel through the USB line to a computer program. Separate channels can not be recorded simultaneously. The only mixers we manufacture that have this feature (to record channels individually) are the UFX1204, UFX1604, the X32 line and the X18/XR18. Here are links with information on these products:
Keywords: XENYX- How Many Tracks Can I Simultaneously Record Over USB X2442USB?