M-Audio M-Track Quad USB Audio Interface- Untested-powers Up

ESI Amber i4 4x4-Kanal USB Audio-Interface mit keepdrum Kopfhörer

PreSonus AudioBox USB 96 Audio Interface Untested

ESI MAYA44 USB+ 4-IN/4-OUT USB AUDIO INTERFACE W/S/PDIF

PreSonus AudioBox 44VSL 4x4 Audio Interface No Power Supply or USB Cable - Used

ESI GIGAPORT-AG USB-8 Channel Analog Interface

Avid Digidesign MBox Mini USB Audio Computer Recording Interface Untested

ESI GIGAPORT HD USB Audio Interface 8 Output DJ Sound Card 24-bit/96kHz