Apogee Quartet 4x8 USB Audio Interface for Mac and iOSNotes 2013 Silver A Apogee Quartet 4x8 USB Audio Interface for Mac and iOS in Mint condition! At Evolution Music, we attempt to highlight cosmetic defects (if any) by picturing every angle of every piece of gear so you know exactly what you are getting. We always picture any and all accessories too. What you see is what you will get so please check out the pictures! Everything we sell has been tested and is fully functional unless otherwise noted. We