Reply 180 of 274, by gdjacobs
The UM-One works as will the Dreamblaster X3. I've also used a Digidesign Mbox 2 for testing and it's fine. M-Audio adapters and even the cheap Chinese no name adapters (some assembly required) should be okay as there are patches to work around their problems, but I can't personally vouch for them nor do I recall any confirmed reports of them working in this forum.
You can also disable the first UART (and Bluetooth in the Pi 3) and use it for MIDI I/O. Of course, you'll need a breakout circuit to convert to a current loop.
All hail the Great Capacitor Brand Finder