This does exactly what it needs to do. You can use it for a variety of patching possibilities, record a line in direct to my laptop mic jack and eliminate latency for recording, OR you can use it to totally jack in sweet music to an external sound card via an AUX IN or something so you can play along with stuff. I guess there's not much more use for it than that- i mean like recording to your ipad? or some other audiophile type stuff?