: This driver was originally for the MIDISport series but has worked for some users on versions as late as OS X Yosemite 10.10.
The Radium 49 is not "class-compliant," meaning it requires a specific driver to communicate via USB. Official support effectively ended after .
The last known working drivers for older Intel Macs include:
However, fast forward to 2025, and a common search query echoes through recording forums: . If you have pulled this controller out of storage or bought one used for its rugged build, you have likely hit a wall. Mac’s operating system has evolved from PowerPC to Intel, and now to Apple Silicon (M1/M2/M3), dropping support for older peripheral protocols along the way.
This article provides a definitive guide to getting your Radium 49 working on a modern Mac (macOS Ventura, Sonoma, and Sequoia). We will cover official driver status, manual MIDI mapping, class-compliance, and third-party workarounds.