Avid Pro Tools Duet - with Perpetual Pro Tools License Harness the power of both Avid software and Apogee hardware in a recording system for Mac and PC 2x4 + MIDI USB interface with premium AD/DA conversion that supports 24-bit/192 kHz resolution EUCON-enabled Pro Tools IO control software for expanded hardware control Includes the full version of Avid Pro Tools recording software with perpetual license Comes with Interface, software, I/O breakout cable, iLok 2 USB key, USB cable, power supply, and quick start guide