• Registered: 2021-01-16
  • Posts: 15

Re: Mac USB driver for macOS 11 & Apple Silicon hardware

rodrigo.constanzo wrote:

Is it possible to downgrade, and if so, where do I find the driver? In the Driver Archive, unless I'm overlooking something, I only see really old drivers from 2019.

https://rme-audio.de/downloads/driver_usbdk_mac_421.zip

Fireface UFX+, ARC USB // Fireface 802
MacMini M4Pro, Macbook M1Pro, Sequoia 15.5
  • From: Germany
  • Registered: 2007-04-10
  • Posts: 10,895

Re: Mac USB driver for macOS 11 & Apple Silicon hardware

You can easily generate links for older versions by copying, editing and pasting the link. Just change the version number.

Regards
Daniel Fuchs
RME

RME Support's Website

  • Registered: 2019-01-17
  • Posts: 42

Re: Mac USB driver for macOS 11 & Apple Silicon hardware

Thanks both.

Didn't realize that was the way to nab older ones.

It appears to be behaving a bit better now after another restart, so will keep an eye on it and see.

854 Reply by corbobilly (edited by corbobilly 2025-07-14 13:58:23)

  • Registered: 2007-07-01
  • Posts: 12

Re: Mac USB driver for macOS 11 & Apple Silicon hardware

And has anyone tried a Fireface UFX III with an Imac M4 and its Thubderbolt 4 ports ?

Imac 24" M4 with 32 Go RAM & Fireface UFX III _ Digital Performer 11 _ Kontakt 8 _
  • Registered: 2023-06-30
  • Posts: 411

Re: Mac USB driver for macOS 11 & Apple Silicon hardware

UFX III has no Thunderbolt interface.

Fireface UCX II + ARC USB > ADI-2 Pro FS R BE > Neumann KH 750 DSP + MA 1 > KH 120 A
  • Registered: 2025-07-16
  • Posts: 1

Re: Mac USB driver for macOS 11 & Apple Silicon hardware

Driver for UFX II under macOS 15.5

I installed the latest v427 driverkit for UFX  II on my M1 running 15.5.  I can see dk in Extensions and it is enabled, but USB settings does not launch.

I downloaded both FUT, fut_usb_mac and fut_madiface_mac, but neither will launch.

This UFXII was working with an earlier kext driver, but my company now does not allow kext only dk

  • From: Germany
  • Registered: 2007-04-10
  • Posts: 10,895

Re: Mac USB driver for macOS 11 & Apple Silicon hardware

https://rme-audio.de/login-items-extens … ia-en.html

Regards
Daniel Fuchs
RME

RME Support's Website

  • Registered: 2025-07-20
  • Posts: 4

Re: Mac USB driver for macOS 11 & Apple Silicon hardware

Hello there!
I'm kinda new here, with kinda the big problem. Basically, I've tried everything that was said here (even installing an older version of the driver, every commands...) but there was always something missing as I'm concerned: every files appart the app.

I never had any "RMEFirefaceUSB.kext" in /Library/Extensions.
Nor I have the other files (like the "de.rme-audio.TotalmixFX.plist"): literally, appart from the files in applications... I truly have nothing else.
At this rate, I'm wondering if I should erase everything on my computer and start everything on a new base ha ha

For information, I'm working with a MacBook M1.
I've returned the the latest driver for the last installation.

I've installed and uninstalled dozen times this driver, and seriously, I'm slightly going mad with that

  • From: Germany
  • Registered: 2007-04-10
  • Posts: 10,895

Re: Mac USB driver for macOS 11 & Apple Silicon hardware

Which driver exactly did you install here?

Regards
Daniel Fuchs
RME

RME Support's Website

860 Reply by MC

  • MC
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  • Registered: 2007-04-06
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Re: Mac USB driver for macOS 11 & Apple Silicon hardware

And which RME interface are you trying to get working?

Regards
Matthias Carstens
RME

MC's Website

  • Registered: 2007-07-01
  • Posts: 12

Re: Mac USB driver for macOS 11 & Apple Silicon hardware

corbobilly wrote:

And has anyone tried a Fireface UFX III with an Imac M4 and its Thubderbolt 4 ports ?

This Fireface UFX III has arrived, and since then, it's been working fine on this iMac 24 M4 running under Sequoia (15.3.1) _
I was wondering because I replaced a Fireface 800 that still had the Firewire connection.

Now, plugged into one of the iMac M4's Thunderbolt 4 ports and after installing the drivers (DriverKit Driver) and then updating the firmware, it's a breeze.

Imac 24" M4 with 32 Go RAM & Fireface UFX III _ Digital Performer 11 _ Kontakt 8 _
  • Registered: 2025-07-20
  • Posts: 4

Re: Mac USB driver for macOS 11 & Apple Silicon hardware

Hello there!
Back to the stuff for some hours, so, small update before replying: I've finished the reset of my MacBook, everything is clean... so, I've tried again! ... and it's quite better, but still doesn't work, but at least I have almost every files (still need to re-check this).


RME Support wrote:

Which driver exactly did you install here?

I've installed the DriverKit v.427, and the Kernel extension. This time, after my reset, I finally have the RMEFirefaceUSB.kext file... well, the driver still closes when I try to launch it, but I think it's because it's the first time installation...!


MC wrote:

And which RME interface are you trying to get working?

Interface... the product? It's the Babyface Pro FS.


I'll be back on my sweet little problem later tonight, I'll keep you updated!

  • Registered: 2025-07-22
  • Posts: 2

Re: Mac USB driver for macOS 11 & Apple Silicon hardware

Hi, I've updated my M1 macbook pro running Sequoia 15.5. I have a fireface UC. I restarted my laptop in recovery mode and made sure to enable "Allow user management of kernel extensions from identified developers" Then I restarted my comp and installed the USB Series Kernel Extension Driver. Before restarting I made sure to hit allow in system settings on the driver before rebooting my comp again. Then I download the RME USB Series Flash Tool and when I double click on it, nothing happens. It looks like mac tries to run it but it never opens.

I have RMEFirefaceUSB.kext in /Library/Extensions
And my fireface UC is recognized in my system report as connected.

Not sure what to try next! I tried installing the driver kit as well to skip the firmware update. I made sure both the RME GmBH is enabled, and de.rme-audio.dkusb  at /Library/SystemExtensions/[longstring] is enabled in the driver extensions in login items, but still have had no luck.

864 Reply by MC

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Re: Mac USB driver for macOS 11 & Apple Silicon hardware

The UC is in PC (Windows) mode?

Regards
Matthias Carstens
RME

MC's Website

  • Registered: 2025-07-22
  • Posts: 2

Re: Mac USB driver for macOS 11 & Apple Silicon hardware

That was it!! Thank you!

866 Reply by Caellïam (edited by Caellïam 2025-07-28 21:29:07)

  • Registered: 2025-07-20
  • Posts: 4

Re: Mac USB driver for macOS 11 & Apple Silicon hardware

Hello there!
Guess who's finally back at their problem? Yep, it's always the same.


Setup:
MacBook Pro M1 Max
Sequoia 15.5
DriverKit v. 4.27
Kernel Extension v. 3.35

Problem:
Fireface USB setting doesn't launch after the reboot


I've installed the DriverKit v.427, then the Kernel extension.
Every instructions for the installation of the driver were followed. Even the "kmutil trigger-panic-medic" command, a re-installation... however, Fireface USB still doesn't want to launch.

I've checked every files, and when I go to /User/Library/Preferences, I only have the "de.rme-audio.dkusbsettings.plist" file, no trace of a Fireface or Totalmix mentioned in the user's guide. Might be a dummy question but: can it be linked?


I noticed something "funny" during a try : at the first installation, when I go in the setting of my Mac / General / Extension, the RME driver is here. Then, I've installed the Kernel Extension.
However, after a reboot, it disappear! No trace, but the RME GmbH is still allowed in the background extension.
When I open a terminal and enter

systemextensionsctl list

0 extension(s).

I also checked the /Library/SystemExtensions folder, no RME file.

However, I made sure that the security is reduced, and I've disabled the gatekeeper.


Tried to re-install the DriverKit, but without the Kernel.
Everything went fine, and I have now the de.rme-audio.dkusb in the list when I ask for the system extension from the terminal.
The de.rme-audio.dkusb.dext file is in the /Library/SystemExtensions folder.

BUT. I have no FirefaceUSB.kext file in /Library/Extensions.

Should I try to keep a copy of the .kext file to put it in the folder after reinstalling the Driverkit?
(Honestly, I might try tomorrow ha ha)



I really need my Babyface Pro FS to work (well, more the driver, the audio interface is recognised by my Macbook), so I'm kinda desperate ha ha
(Sorry for the pretty long message, I'm updating it while there's no reply. And also, sorry for my poor English, it's not my natal language!)

Thanks in advance!

  • Registered: 2025-07-28
  • Posts: 1

Re: Mac USB driver for macOS 11 & Apple Silicon hardware

hello guys i have an rme fireface 800 i recently bought a mac mini m2 pro i have connect the rme with apple adaptors all right as they say the problem is that all ins and outs cant be seen in protools or cubase i tried to open total mix to see if is wrong from me but apparently itsnot .

  • From: Adelaide - Australia
  • Registered: 2007-05-01
  • Posts: 478

Re: Mac USB driver for macOS 11 & Apple Silicon hardware

Caellïam wrote:

Hello there!
Guess who's finally back at their problem? Yep, it's always the same.


Setup:
MacBook Pro M1 Max
Sequoia 15.5
DriverKit v. 4.27
Kernel Extension v. 3.35

Problem:
Fireface USB setting doesn't launch after the reboot


I've installed the DriverKit v.427, then the Kernel extension.
Every instructions for the installation of the driver were followed. Even the "kmutil trigger-panic-medic" command, a re-installation... however, Fireface USB still doesn't want to launch.

I've checked every files, and when I go to /User/Library/Preferences, I only have the "de.rme-audio.dkusbsettings.plist" file, no trace of a Fireface or Totalmix mentioned in the user's guide. Might be a dummy question but: can it be linked?


I noticed something "funny" during a try : at the first installation, when I go in the setting of my Mac / General / Extension, the RME driver is here. Then, I've installed the Kernel Extension.
However, after a reboot, it disappear! No trace, but the RME GmbH is still allowed in the background extension.
When I open a terminal and enter

systemextensionsctl list

0 extension(s).

I also checked the /Library/SystemExtensions folder, no RME file.

However, I made sure that the security is reduced, and I've disabled the gatekeeper.


Tried to re-install the DriverKit, but without the Kernel.
Everything went fine, and I have now the de.rme-audio.dkusb in the list when I ask for the system extension from the terminal.
The de.rme-audio.dkusb.dext file is in the /Library/SystemExtensions folder.

BUT. I have no FirefaceUSB.kext file in /Library/Extensions.

Should I try to keep a copy of the .kext file to put it in the folder after reinstalling the Driverkit?
(Honestly, I might try tomorrow ha ha)



I really need my Babyface Pro FS to work (well, more the driver, the audio interface is recognised by my Macbook), so I'm kinda desperate ha ha
(Sorry for the pretty long message, I'm updating it while there's no reply. And also, sorry for my poor English, it's not my natal language!)

Thanks in advance!


Why are you installing the Kernel Extension? You only need one or the other. Not both.
In my case, it just works.  Run the installer and follow the instructions.

----------------
Matt McKenzie-Smith (UFXII, UFX, Babyface) MacStudioUltra OS13.2.1
----------------

mattrixx's Website

869 Reply by Caellïam (edited by Caellïam 2025-07-29 06:35:44)

  • Registered: 2025-07-20
  • Posts: 4

Re: Mac USB driver for macOS 11 & Apple Silicon hardware

mattrixx wrote:
Caellïam wrote:

Hello there!
Guess who's finally back at their problem? Yep, it's always the same.


Setup:
MacBook Pro M1 Max
Sequoia 15.5
DriverKit v. 4.27
Kernel Extension v. 3.35

Problem:
Fireface USB setting doesn't launch after the reboot


I've installed the DriverKit v.427, then the Kernel extension.
Every instructions for the installation of the driver were followed. Even the "kmutil trigger-panic-medic" command, a re-installation... however, Fireface USB still doesn't want to launch.

I've checked every files, and when I go to /User/Library/Preferences, I only have the "de.rme-audio.dkusbsettings.plist" file, no trace of a Fireface or Totalmix mentioned in the user's guide. Might be a dummy question but: can it be linked?


I noticed something "funny" during a try : at the first installation, when I go in the setting of my Mac / General / Extension, the RME driver is here. Then, I've installed the Kernel Extension.
However, after a reboot, it disappear! No trace, but the RME GmbH is still allowed in the background extension.
When I open a terminal and enter

systemextensionsctl list

0 extension(s).

I also checked the /Library/SystemExtensions folder, no RME file.

However, I made sure that the security is reduced, and I've disabled the gatekeeper.


Tried to re-install the DriverKit, but without the Kernel.
Everything went fine, and I have now the de.rme-audio.dkusb in the list when I ask for the system extension from the terminal.
The de.rme-audio.dkusb.dext file is in the /Library/SystemExtensions folder.

BUT. I have no FirefaceUSB.kext file in /Library/Extensions.

Should I try to keep a copy of the .kext file to put it in the folder after reinstalling the Driverkit?
(Honestly, I might try tomorrow ha ha)



I really need my Babyface Pro FS to work (well, more the driver, the audio interface is recognised by my Macbook), so I'm kinda desperate ha ha
(Sorry for the pretty long message, I'm updating it while there's no reply. And also, sorry for my poor English, it's not my natal language!)

Thanks in advance!


Why are you installing the Kernel Extension? You only need one or the other. Not both.
In my case, it just works.  Run the installer and follow the instructions.

I did it the very first time with only the DriverKit but : nop, it didn't work in my case.
There was no .kext file, and Fireface didn't launch after the reboot (well, it's not like it's working right now so-). That's why I tried to install the Kernel extension after the Driverkit, and if I do, I indeed have the .kext file (but, not the rest).
At the end, I'm just testing every possibility lol

So, maybe I'll delete everything again and try with just the Kernel extension (I didn't try this one too ha ha)


EDIT: Tried with just the Kernel extension, but I've just launched the installation, did not do anything else at the moment (so, no command).
I don't have any file related to RME in /User/Library/Preferences, not even the "de.rme-audio.dkusbsettings.plist" file that I usually have with the driver kit. Will try later to "kmutil" and... well, let's see what happens?

  • Registered: 2023-03-18
  • Posts: 9

Re: Mac USB driver for macOS 11 & Apple Silicon hardware

Hey RME Peeps,  I've read through much of the recent posts regarding the OS issue with USB interfaces.  So what are peoples' experience with the new update?  I ended up selling my Digiface Dante last Spring as I was under the impression the issue could not be resolved - RME was not very communicative about a solution or working on a solution.

With that said - I would love to have a digiface dante interface back in the fold-  I'm using a MBP with M3 processor. Is the issue resolved?

871 Reply by mmcd

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  • Posts: 25

Re: Mac USB driver for macOS 11 & Apple Silicon hardware

I'm not upgrading to os 15.6+ yet, because the current os 15.4 is warning me that Rme won't work in the next update, and now I'm running kernel 3.35. Has anyone tried 15.6 if you're running a kernel extension and not a shell?

  • Gr8h8m
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  • Posts: 166

Re: Mac USB driver for macOS 11 & Apple Silicon hardware

Running 15.6.1 here with Kext driver and all is fine (UFX III).

873 Reply by mmcd

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  • Posts: 25

Re: Mac USB driver for macOS 11 & Apple Silicon hardware

Thanks, but kext 4.27 and subsequent modifications will work on any subsequent macOS. I'm only interested in whether kernel 3.35 works with 15.6+? Because I intend to work only with kernel drivers in the coming years, I personally will stop updating macOS because of the kernel. The only thing that would be bad is if IT RME stops improving the kernel for UFX III. Personally, I'm not interested in kext or CC, but only kernel and USB3.. Because on UFXIII there will be no other faster connection than USB3.. In my dreams, I would like a separate kernel driver and flash update without CC and only all the processor resources to go to MADI and USB3, and I personally don't need compressors, equalizers or other FX in totalmix if it takes up % cpu resources in RME.

874 Reply by waedi

  • waedi
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  • Registered: 2020-12-08
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Re: Mac USB driver for macOS 11 & Apple Silicon hardware

4.27 is not kext it is DK driver ( driver-kit driver)

post 872 above confirmed the Kext does work with the new MacOS. The Kext seems to be the 335, Gr8h8m otherwise would have reported it.

M1-Tahoe, Madiface Pro, Digiface USB, Babyface silver and blue

875 Reply by mmcd

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Re: Mac USB driver for macOS 11 & Apple Silicon hardware

Yes, I meant that I don't want DKit. I only use kernel extensions, I thought 427 was called kext. I still have an old madiface on the e34 connection, which works fine via an optical cable with ufx3, and also on the old kernel driver, and on an i7 macbook 2014 ... but it all works fine, recording to the ripper and all kinds of measurement plugins, also with madiface via ssl alpha madi 24 i/o for hardware FX.

876 Reply by netgrabber (edited by netgrabber 2025-09-16 12:08:25)

  • Registered: 2020-04-01
  • Posts: 5

Re: Mac USB driver for macOS 11 & Apple Silicon hardware

Hi everybody !
What about macOS Tahoe 26 ?
Did someone tested it positively ?
Thanks

MBP M4 Max macOS 15.6.1
Fireface UC

  • Registered: 2025-04-19
  • Posts: 7

Re: Mac USB driver for macOS 11 & Apple Silicon hardware

My system is perfectly fine on Tahoe so far, but that doesn't necessarily mean that everyone else's setup will be too.

  • From: San Francisco
  • Registered: 2014-04-22
  • Posts: 6

Re: Mac USB driver for macOS 11 & Apple Silicon hardware

I have a new Mac Studio computer with Mac OS Tahoe 26.
Unfortunately, I haven't been able to get my RME Bayface Pro FS to start up.

I've tried everything, including the security settings in the start menu. The RME device is displayed in CC mode, but Totalmix won't start.

Any advice? Or should I sell the Babyface again?

marcus.schuler's Website

879 Reply by waedi

  • waedi
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  • Registered: 2020-12-08
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Re: Mac USB driver for macOS 11 & Apple Silicon hardware

Did you try to install the driver 427 and set the unit into normal-mode ?

CC-mode with Totalmix is for USB-3 interfaces, the Babyface is USB-2 afaik.

M1-Tahoe, Madiface Pro, Digiface USB, Babyface silver and blue
  • From: San Francisco
  • Registered: 2014-04-22
  • Posts: 6

Re: Mac USB driver for macOS 11 & Apple Silicon hardware

waedi wrote:

Did you try to install the driver 427 and set the unit into normal-mode ?

CC-mode with Totalmix is for USB-3 interfaces, the Babyface is USB-2 afaik.


Yes, but only in CC the device shows up in sound settings.

In normal mode, Tahoe does not recognize hardware…

marcus.schuler's Website

881 Reply by Jeff

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Re: Mac USB driver for macOS 11 & Apple Silicon hardware

After installation, go to System Settings > General > Login Items & Extensions > Extensions > (switch to By Category) > Driver Extensions. Click the small "i" on the right side and enable the RME Settings app to allow the driver to work on your system.

Regards,
Jeff Petersen
Synthax Inc.

Jeff's Website

  • Registered: 2025-09-20
  • Posts: 2

Re: Mac USB driver for macOS 11 & Apple Silicon hardware

Monotremata wrote:

My system is perfectly fine on Tahoe so far, but that doesn't necessarily mean that everyone else's setup will be too.

Hi Monotremata,

I currently use my Fireface UCX II via kernel extension on MacBook Pro M4 Pro running macOS 15.7 Sequoia without any issues and rock solid performance. I do not want to rock the boat since I have the impression that with macOS 26 Tahoe I need to switch to Driver Kit. I have not found a clear advice on the RME website if upgrading is a good choice at this moment.

Can you please share your system setup? Do you use the kernel extension or the Driver Kit? What RME device do you use? And was your computer new with macOS 26 Tahoe pre-installed or did you upgrade? If you did an upgrade, how did you use the RME drive, as a kernal extension or Driver Kit?

Thank you in advance for sharing your experience and setup with us.

  • Registered: 2025-09-28
  • Posts: 1

Re: Mac USB driver for macOS 11 & Apple Silicon hardware

Hi,

I'm new here, this is my first post. I'm using a Babyface pro fs, mac mini m4 pro and mac OS Tahoe, which was working perfectly until I installed the lates Mac OS tahoe updates. Now It's not working, total mix does not start although it has a white dot beneath it it does not show up, I tried to reinstall everything but it does not work it won't launch the installation window. I did the whole reduced security for kernel before I upgraded to Tahoe and after.

Please Help! I don't want to downgrade to macOS Sequoia and reinstall everything on my computer because RME did not update it's drivers or I don't know for sure what is the issue but it does seem to be that RME didn't catch up to the latest updates on MAC computers.

884 Reply by waedi (edited by waedi 2025-09-28 13:30:16)

  • waedi
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Re: Mac USB driver for macOS 11 & Apple Silicon hardware

Hi Erick, welcome to the forum.
Here also Tahoe, Totalmix works fine with the Digiface USB DK driver, all fine.
What is this white dot ?

Sure the driver is switched ON ?
MacOS system preferences / general / startup items and extensions
scroll down to driver extensions and hit the little i-icon right side
A switch may reveal.

And you don't need to reduce any security, this is only need in some cases for the installation of a driver, after successful installation one can set back all security settings to normal.
It is possible in your case the upgrade of the entire MacOS did reset (switch off) extensions.
Don't panic.

M1-Tahoe, Madiface Pro, Digiface USB, Babyface silver and blue

885 Reply by craftring (edited by craftring 2025-09-28 15:35:33)

  • Registered: 2025-09-20
  • Posts: 2

Re: Mac USB driver for macOS 11 & Apple Silicon hardware

Hi,

Just a quick update.

My Mac Mini M1 running macOS Sequoia, which never had any RME software installed on it, was collecting dust. So I used my Mac  Mini to test the RME kernel extension if it would run on macOS after upgrading to macOS Tahoe.

On my Mac Mini, I installed the RME kernel driver as instructed on the RME website. Which is the same way I used to install this driver on my MacBook Pro M4 Pro. My Fireface UCX II was working without any issues on the Mac Mini.

Then I upgraded my Mac Mini to macOS Tahoe. And everything was running without any issues. Also Logic Pro 11 and Arturia software are working without any issues. This gave me the confidence to upgrade my MacBook Pro to macOS Tahoe.

My MacBook Pro is running without any issues and so is my Fireface UCX II and Arturia software. TotalMix, Fireface USB Settings and DigiCheck NG are running perfectly. My RME ARC USB is working perfect. My Logic Pro 11 projects are also working without any issues. Logic Pro also uses my Fireface without any issues. The RME kernel extension and RME software on my MacBook Pro were  installed before the upgrade. I did not need to reinstall any software. Everything is working after the upgrade to macOS Tahoe.

After reading that other people with different RME products have issues with macOS Tahoe, I do not know if it is RME product related or Mac that my Fireface UCX II is working without issues after upgrading.

[EDIT]
I use RME Kernel Extension for Mac v3.35, TotalMix v1.99, and DigiCheck NG v0.93.

886 Reply by ugnius (edited by ugnius 2025-09-28 18:09:57)

  • Registered: 2025-09-23
  • Posts: 4

Re: Mac USB driver for macOS 11 & Apple Silicon hardware

Hi. Thank You, craftring, for  the very valuable post.  I've upgraded my Apple MacBook Pro M2 Max Sequoia 15.6.1 with Kernel extension RME Thunderbolt  driver version 1.25 for my RME Fireface UFX+ device firmware v112 to Tahoe 26.0 Mac OS and can confirm that this setup is working well as expected.

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Re: Mac USB driver for macOS 11 & Apple Silicon hardware

waedi wrote:

after successful installation one can set back all security settings to normal.

Is this correct (after successfully installing old skool Kext driver)? I thought that would disable the installed driver?

888 Reply by MC

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Re: Mac USB driver for macOS 11 & Apple Silicon hardware

Jeff wrote:

After installation, go to System Settings > General > Login Items & Extensions > Extensions > (switch to By Category) > Driver Extensions. Click the small "i" on the right side and enable the RME Settings app to allow the driver to work on your system.

The RME Settings app is - as far as what I saw - already switched on. But when using the Kernel driver there is another entry in this dialog with RME in its name that needs to be enabled as well. This seems to be a new 'feature' of Tahoe.

Regards
Matthias Carstens
RME

MC's Website

  • Registered: 2010-07-30
  • Posts: 80

Re: Mac USB driver for macOS 11 & Apple Silicon hardware

MC wrote:
Jeff wrote:

After installation, go to System Settings > General > Login Items & Extensions > Extensions > (switch to By Category) > Driver Extensions. Click the small "i" on the right side and enable the RME Settings app to allow the driver to work on your system.

The RME Settings app is - as far as what I saw - already switched on. But when using the Kernel driver there is another entry in this dialog with RME in its name that needs to be enabled as well. This seems to be a new 'feature' of Tahoe.

Hey Matthias.

In Windows 11 on a decent Laptop, my RME Babyface Pro FS delivers an RTL measurement at the lowest buffer setting at 48k of around   3.3ms <-> 3.5ms and its rock solid - Amp Sims play and feel like "real".

If I grab an Macbook Air M1 and use the new USB Series DriverKit Driver  in Tahoe with the same RME Babyface Pro FS, will I be able to achieve the same or better or worse RTL Latency than my Windows / Babyface Setup RTL (?)

Many thanks agaain smile

890 Reply by MC

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Re: Mac USB driver for macOS 11 & Apple Silicon hardware

I would say the same should be possible. Better - no, as this requires below 32 samples buffer size, and is not guaranteed to work reliably on later macOS (haven't tested Tahoe yet for that).

Regards
Matthias Carstens
RME

MC's Website

  • Registered: 2010-07-30
  • Posts: 80

Re: Mac USB driver for macOS 11 & Apple Silicon hardware

MC wrote:

I would say the same should be possible. Better - no, as this requires below 32 samples buffer size, and is not guaranteed to work reliably on later macOS (haven't tested Tahoe yet for that).

Huge thanks again Matthias smile

Lastly - I just noticed the pre-existing "standard"  Mac drivers - 2024-10-16  driver_usb_mac_3223.zip - are also on the site for d/l.

In terms of ultra low RTL [and stability]  would you suggest that these  "older"  drivers are still perhaps the best way to go for ultra low RTL and stability  ?   -or-  has the new  RME kernel extension  "driver" equaled or surpassed these  "older"  drivers  in terms of ultra low RTL and Stability ?

My sincere thanks again
Ben

  • Registered: 2020-04-01
  • Posts: 5

Re: Mac USB driver for macOS 11 & Apple Silicon hardware

Hi everybody
Just to say that with my MBPro M4 Max, with MacOS Tahoe 26, I tried my Fireface UC with the DriverKit and it was really bad, with lots of cracks.
So I Installed the Kernel Extension and it works perfectly ! Thanks RME for this Kernel Extension !

893 Reply by jimbojoho (edited by jimbojoho 2025-10-16 14:30:57)

  • From: London, UK
  • Registered: 2025-08-03
  • Posts: 46

Re: Mac USB driver for macOS 11 & Apple Silicon hardware

Just to chime in on this thread - I recently updated to Tahoe, the M1 Max stuttering is definitely better but it's still there a little bit.

Currently diagnostics is saying 0/0/0/8/0

M1 Max Mac Studio | Tahoe 26.1 | UFX III + ARC USB
  • Registered: 2025-12-08
  • Posts: 2

Re: Mac USB driver for macOS 11 & Apple Silicon hardware

Hi guys!
The drivers for my RME Fireface 400 stopped working after updating to Tahoe 26.1. My setup is a Mac mini M1, and I installed the FCMac 341 driver. After installation, I followed the steps in message 881. I also accepted the security permissions as in message 857. The device is connected via a Thunderbolt 4 adapter. I don't know what I'm doing wrong.
Please excuse my English; I'm not a native speaker.

  • Registered: 2018-12-21
  • Posts: 431

Re: Mac USB driver for macOS 11 & Apple Silicon hardware

FireWire devices do no longer work under Tahoe. You would need to downgrade to Sequoia or upgrade the interface.

  • Registered: 2025-12-08
  • Posts: 2

Re: Mac USB driver for macOS 11 & Apple Silicon hardware

Thanks hselters. Downground to Sequoia and it works perfectly.

  • Registered: 2025-12-28
  • Posts: 1

Re: Mac USB driver for macOS 11 & Apple Silicon hardware

Jeff wrote:

After installation, go to System Settings > General > Login Items & Extensions > Extensions > (switch to By Category) > Driver Extensions. Click the small "i" on the right side and enable the RME Settings app to allow the driver to work on your system.

Thanks, this fixed it for me. (Babyface Pro not recognized on Tahoe upgrade).

  • Registered: 2008-01-23
  • Posts: 28

Re: Mac USB driver for macOS 11 & Apple Silicon hardware

netgrabber wrote:

Hi everybody
Just to say that with my MBPro M4 Max, with MacOS Tahoe 26, I tried my Fireface UC with the DriverKit and it was really bad, with lots of cracks.
So I Installed the Kernel Extension and it works perfectly ! Thanks RME for this Kernel Extension !

Aha! I've been going round and round on another thread trying to figure out why I'm getting crackly sounds on the M2Pro MBP under Tahoe, but the M4 MacBook Air with Sequoia is clean as a whistle with the exact same setup. RME tech support is claiming it's all a grounding issue and not a software or RME hardware issue. I'll try th Kernel Extension and see if it cleans it up.

I thought the DriverKit was supposed to be more "modern" and compatible? Do you have to boot into whatever they're calling the "lower security mode" now?

899 Reply by MC

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Re: Mac USB driver for macOS 11 & Apple Silicon hardware

On the other thread you described noise that goes away when removing certain physical connections. How can a different driver help with that? Here we are talking about audio issues during active playback only.

Regards
Matthias Carstens
RME

MC's Website

900 Reply by danyx

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Re: Mac USB driver for macOS 11 & Apple Silicon hardware

Hello, I'm a fireface UFX (1st gen) user. I just received a pop-up message on my mac studio (M1) telling me that a system extension from RME has tried to install and that it won't be supported on the next OS. What does it mean concretely ?