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The SSD:

  • Samsung 850EVO 500GB (ExFat formatted)

The adapters:

  • SATA to USB 3 type A (ICY BOX IB-AC603a-U3)
  • SATA to USB 3 type A (Sabrent)
  • SATA to USB 2 type A (ICY BOX IB-AC603)
  • USB 3 type A to USB 3 type C (Sabrent)

The SSD works fine with all SATA to USB type A adapters when I connect it to my 2011 MacBookPro witch only has USB 2 type A ports.

It also works fine on my MacBookAir M2 when I use the SATA to USB 2 type A adapter in combination with the USB 3 type A to USB 3 type C adapter. But of course only with the speed of USB 2.

It is not even being recognized by my MacBookAir M2 as soon as I'm using the SATA to USB 3 type A adapter in combination with the USB 3 type A to USB 3 type C adapter. Not in Disk Utilities not in System Information.

In short: SATA to USB(A) 3 -> USB(A) 3 to USB(C) -> MBA M2 = not being recognized. SATA to USB(A) 2 -> USB(A) 3 to USB(C) -> MBA M2 = works fine but slow. SATA to USB(A) 2 -> MBP 2011 = works fine but slow.

I've tried Disk Utilities's first Aid, different Macs and a few different adapters. It is every time the same. I can't get it to work on the MacBookAir M2 with USB 3. The disc is ExFat formatted, but that should not be a problem, as it is not even being recognized in Disk Utilities.

Has anyone experienced the same issue, or has any idea what I am missing?

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  • Can you provide a link to USB 3 type A to USB 3 type C adaptor (Sabrent)? I can find this one. There is no indication this one is USB 3. Might only be USB 2.
    – David Anderson
    Sep 24, 2022 at 18:05
  • amzn.eu/d/6DzuDcc this is the product I've bought. I includes the USB 3 type A to USB 3 type C adaptor. I also tried different USB 3 type A to USB 3 type C adaptors. No luck :(
    – jofunk
    Sep 24, 2022 at 18:08
  • Does the power/activity light on the Sabrent adapter come on? My summary of your issue is that you have never had it working at USB3 speeds - only at USB2 connected to both Macs. Can you test this with a more recent Intel based MBP (with USB3 ports) - so as to determine whether your issue is the USB2/3 or Intel/M2
    – Gilby
    Sep 25, 2022 at 4:05
  • Yes the indicator is on and flashes when it successfully connects. Today I could test it on the iMac (Retina 5K, 27 Zoll, 2019) whits has both, USB 3 type A and Thunderbolt / USB 3 type C ports. Connected to the USB 3 type A port it always worked at USB 3 speed. Connected to the USB 3 type C port the behavior is random. Sometimes it worked with USB 3 and sometimes only with USB 2 speed. It seems that the port is not every time identifying the adapters as USB 3 device and in that case it is downscaling to USB 2 speed :( And still, on my new MackBookAir M2 the SSD is not even recognized.
    – jofunk
    Sep 26, 2022 at 15:51

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