Public beta for Yamaha Steinberg USB Driver for macOS

Hello everyone,

UPDATE - June 1, 2023
V4.0.1b to 4.0.2b
Now supports Steinberg UR242/UR44/UR28M/UR824/UR-RT2/UR-RT4

Since Apple has already declared that the Kernel Extension will be discontinued in future macOS, we decided to release a public beta of the Yamaha Steinberg USB driver.

The Version V4.0.2b will be available only on the Steinberg forum exclusively.
This new driver uses the Driver Extension (System Extension) and not the older Kernel Extension solution anymore. It will prevent that the “Legacy System Extension” warning message appears.

Supported OS: macOS 13
Supported Platform: Apple silicon (no Intel CPU support)
Supported Models:

It is no longer necessary to change security settings from recovery mode when installing drivers on a Mac with Apple silicon but allowing the driver in “Security & Privacy” is still required.

Please find here the link to the driver, the installation guide and the release notes.


Installation Guide

Release Notes

Please be aware that installing this driver is for technical evaluation only and the installation is the responsibility of the customer.

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I have not been able to get USB drivers V3.14 or V4.0.2b to be recognised by my Mac mini M2 Pro with MacOS Ventura 13.4, despite meticulously following the installation instructions, allowing extensions, unchecking the Security Policy option to “allow user management of kernel extensions from identified developers” etc.

I have run out of options. Can anyone suggest a fix?


Are there plans for an Intel version of this Driver?

I currently cannot use my UR-RT2 on iMac Pro at all.


I cannot use my UR824 audio interface, after the latest macOS 12.6.9 update. I suspect this new OS introduces something preventing the Yamaha kext (apparently authorized) from loading.

Can you at least make this situation clear, and let us know if this issue will be solved?

As a reminder: Monterey will be supported by Apple up to the end of the next year. It is still a perfectly current OS.


I tried the driver but had to uninstall it.
It caused the CPU to shoot to 100% on low latency settings (M1 Max, UR44) even when no audio was produced.
It also introduced crackles and dropouts in the sound on higher latencies (11-14 ms), even on external gear fed into Cubase (12 Pro) with absolutely no VST effects added


Just wanted to check if there are any plans to add support for Intel CPUs to the new driver??
macOS Sonoma still supports Intel CPUs and the current driver does not work at all…
…without a proper driver my UR-242 is more or less ‘paper-weight’.

I can use it with my iPad but still…

Hopefully a new driver with Intel support will pop up sooner rather than later.

Hello @Ed_Doll,

Any news on a final release and is MacOS Sonoma 14.0 supported ? I’m afraid to upgrade my Mac.

I have 3.1.4 installed now which I suppose will not work with Sonoma, correct ?

If my interface (UR-RT4) stops working after an upgrade this would be a disaster for me.

Thanks !

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