External disk in Sonoma not recognized

Macbook Pro 14' 2023 connected with an Icy Box Hub with integrated M2 Slot does not show 1TB NVMe.

Running latest OS 14.1.


But when taking a 256GB NVMe from my old computer it is recognized.

Both work on old computer with Mojave.

MacBook Pro 14″, macOS 14.1

Posted on Nov 6, 2023 1:15 AM

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Posted on Nov 6, 2023 10:09 AM

Problem solved.


The Icy Box Hub only supports NVMe up to 4,5W Power, which in my case was not enough for the Kensington KC3000. In there specs they did not mention the max. power, only up to 2TB.


With USB-C everything seems to get more and more complicated, despite that we were told, its gets easier.

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Question marked as Best reply

Nov 6, 2023 10:09 AM in response to HWTech

Problem solved.


The Icy Box Hub only supports NVMe up to 4,5W Power, which in my case was not enough for the Kensington KC3000. In there specs they did not mention the max. power, only up to 2TB.


With USB-C everything seems to get more and more complicated, despite that we were told, its gets easier.

Nov 6, 2023 7:00 AM in response to westbahn

It is up to the third party manufacturers to make their products compatible with one another. In your specific case, you are using a third party hub along with a third party SSD. In order for macOS to even recognize the SSD requires that the SSD works in the Ice Box Hub. Have you confirmed these two items work together by testing on other computers, especially a Windows or Linux based system?


How is they Icy Box Hub connected to the Mac? Need specific and exact links to the cables & adapters used since they may make a huge difference, plus a link to the Icy Box Hub you are using since I don't know what you have and there are multiple possibilities. Also, what it the exact make & model of both SSDs....are they installed into this hub or do they have their own separate adapter/dock/enclosure? The 1TB NVMe and the older 250GB one? This is also extremely important to know. Not all SSDs work with all computers, hubs, docks, adapter, or enclosures. Yes, theoretically they should, but in my own personal experience this is not always the case.


Make sure to disconnect all other external devices in case one of them is causing a problem.


My guess the issue has something to do with the SSD being used or possibly the cable being used or how everything is connected.

Mar 14, 2024 9:28 AM in response to westbahn

I have:

1x 2TB usb-c SSD Samsung T9

1x 1TB usb-c SSD Crucial X6

1x 1TB usb-c enclosure with Samsung 980 NvMe


Three different mac book pro, running all the same operating system: Sonoma 14.4


I can use just one time the drive then it stop been recognized by any macbook pro, to get it back working I have to connect the drive to a windows pc (yes.. A WINDOWS PC!), then click "repair" and then plug back on mac, and magically it start working again!

As soon as I reboot the mac or I safe remove the drive, I need to repeat the windows-fix again and again and again.. same behavior on both THREE macbook pro and with EACH drive.


Does Apple read this forum?


External disk in Sonoma not recognized

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