M-Audio M-Track Duo USB-C Audio Interface 2-Channel - BROKEN PREAMPS

M-Audio M Track Quad Digital Audio Interface - UNTESTED FOR PARTS

M-Audio MobilePre MKII USB Audio Interface - Tested & Working

PreSonus AUDIOBOX USB 96 2 Channel Audio Interface

PreSonus AudioBox 22VSL 2-In/2-Out Desktop USB Audio Interface | NOT TESTED

M-Audio Quattro USB Audio Interface 24bit/96khz *TESTED*

M-Audio Fast track USB Session The Make-Music-Now Studio For Guitar And Voice

M-Audio M-Track Interface 2 Input Midi