4 In/4 Out Desktop USB Audio Interface with 2 Mic Preamps Scarlett 4i4 is the complete compact studio hub for all your instruments. Perfect for multi-instrumentalists and collaborators, 4i4 is loaded with I/O for everything. Two of our most detailed ultra-low-noise mic preamps. Hi-Z, line and MIDI connections for your keys, guitars, synths, grooveboxes and controllers. With 4i4 your headphones, monitors, and line outs each get their own mix, so you can match the studio setup to the session. Air mode, with Presence and Harmonic Drive, gives you that big console sound wherever you record. Auto Gain and Clip Safe make sure you'll never need to worry about your levels. And the Hitmaker Expansion software bundle includes all the tools you need to record, produce and release your tracks.