Mac [top] | M-audio Radium 49 Driver

The M-Audio Radium 49 is not officially supported on modern macOS , but remains usable as a basic MIDI controller. For professional or critical use requiring all 49 keys + full controller features, consider replacing it with a modern, class-compliant controller (e.g., M-Audio Oxygen Pro, Arturia KeyLab, Novation Launchkey).

To summarize the search for the :

: Some users report that older Radium 49 units may require an external 9V DC power supply m-audio radium 49 driver mac

This driver is confirmed to work on OS X 10.8 through 10.10 Yosemite for some users. The M-Audio Radium 49 is not officially supported