Digi OS Upgrades: Class Compliant USB Audio & MIDI - YouTube
Zoom UAC-2 - USB 3.0 Audio Interface
RME: Support
Alesis USB-MIDI Cable - Vintage King
Using the USB Audio Class Driver – Best Practices and Common Pitfalls - ppt download
i.ytimg.com/vi/SpfbR2yMxjI/mqdefault.jpg
Amazon.com: CME WIDI Uhost + USB-B OTG cable pack - Bluetooth USB MIDI Interface + USB host for Class Compliant USB MIDI devices via USB-B (printer) port : Electronics
High-quality audio output from iPhone (iOS 5) – grrrr.org
The most class compliant USB audio interface? : r/linuxaudio
Pro Tools | Class compliant USB audio interface splits into two devices in macOS 10.12
Kenton MIDI USB Host for 'Class Compliant' Devices at Gear4music
m.media-amazon.com/images/I/71vNqogMx-L.jpg
Kenton MIDI USB Host Mk3 (for Class Compliant MIDI devices) - Control Voltage
Amazon.com: ESI M4U eX: 8-Port USB 3.0 MIDI Interface - Class-Compliant, Plug-and-Play Connectivity for PC/Mac, with Standalone Functionality & Integrated USB Hub, Includes Free Cubasis LE for iOS : Musical Instruments