MRCC MIDI Router Control Center and USB MIDI Interface
Amazon.com: CME U2MIDI Pro - High-Speed USB MIDI Cable with Filter and Mapper - Plug & Play USB-to-MIDI Interface for Computer/Laptop/PC to MIDI Instrument/Device - 6.5ft : Musical Instruments
Cloud MIDI Bridge Availability – McLaren Labs2
MIDI Patchbay replacement? - Bome Forum
Set up MIDI devices using Audio MIDI Setup on Mac - Apple Support
Software MIDI Patchbay on OS X (MidiPipe)? - Other Gear - Elektronauts
MIDI Router on the Mac App Store
Ground Control – Free Audio Router for MacOS | Loopback Soundflower alternative | The REAPER Blog