Apogee Quartet 12 IN x 8 OUT USB Audio Interface for Mac and PC - The Sound Parcel
Amazon.com: Apogee Quartet - USB Audio Interface - 4 Inputs with World-Class Apogee Mic Preamps and Professional Line Level Input, Made In USA : Everything Else
Avid Pro Tools Quartet | Sweetwater
Buy Used Apogee quartet Audio Interface | Sam Ash Music