DESC: Record with professional results with the M-Audio Fast Track Pro. The Fast Track Pro audio interface lets you record your microphones, guitars and other instruments with true, professional-grade fidelity. This powerful interface delivers all the flexibility of the Fast Track USB, plus two inputs for directly recording microphones and instruments, a digital input/output (S/PDIF) for connecting digital audio gear, and other professional features. Fast Track Pro is compatible with most popular music software and is perfect for use with Apple’s GarageBand or Logic.