Apple Event: May 7th at 7 am PT

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

M1 Compatibility Issue? External Drive is Unreadable / Causes Hard Crashes

I have an external Sabrent Rocket M.2 SSD formatted with the exFAT file system that I've tried using on my new M1 MacBook Pro w/ 16 GB RAM and two other computers, a 2019 iMac and a PC workstation. Here are my results:


M1 MacBook Pro w/ OWC Envoy Express Thunderbolt 3 Enclosure & 8TB Sabrent Rocket M.2 SSD >> HARD CRASHES, FAILURE TO BOOT WHILE PLUGGED IN


M1 MacBook Pro w/ Plugable USB-C Enclosure and Sabrent Rocket M.2 8TB SSD >> Error message, Drive unreadable, option to initialize yields a screen showing a SSD with 97 TB of space, unable to format.


2019 iMac w/ 8-core i9 & Plugable USB-C Enclosure w/ Sabrent Rocket 8TB M.2 SSD, works as expected, drive benchmarked at 900 MB/s.


PC workstation w/ Thunderbolt 3 expansion card, Plugable USB-C Enclosure w/ Sabrent Rocket M.2 SSD >> Drive works as expected, benchmarked at 900 MB/s via USB-C and Thunderbolt 3 connections.


PC workstation with Sabrent Rocket M.2 SSD installed directly onto ASROCK Taichi x570 motherboard >> drive works as expected, benchmarked at 2.7 GB/s.


PC workstation with OWC Envoy Express TB3 Enclosure and Sabrent Rocket 8TB M.2 SSD >> Device does not appear when connected to my TB3 expansion card. Expansion ports appear in device manager and have been tested with a successful TB3 connection to a QNAP server.


In summary, the M.2 SSD fails to connect to my M1 MacBook Pro with either a USB-C or TB3 enclosure using properly rated cables (and the OWC has a built-in TB3 cable). The Drive is tested perfectly on a 2019 iMac and PC with the USB-C enclosure, but fails to appear on my PC workstation via the TB3 enclosure. The TB3 enclosure is not tested on the iMac (it's far away at my friend's house and I forgot to bring the enclosure with me).


I really just need to get this drive working on my new M1 MacBook Pro so that I can edit PRORES video on location. That's mainly the only reason I bought this Mac.


Any thoughts?


Thank you!



MacBook Pro 13″, macOS 11.0

Posted on Dec 11, 2020 4:15 AM

Reply
Question marked as Best reply

Posted on Jan 21, 2021 5:15 AM

Thanks for replying. I had forgotten to close out this forum with... ta da! The correct answer!


Sabrent eventually suggested that I use one of their TB3 enclosures for the M.2. I tried their own design, which was really really nice, and it works great for the 8TB model. I also tested the Sabrent waterproof USB-C enclosure for the 8TB model, and it did NOT work, despite the fact that the specs on that enclosure suggest full compatibility.


I am left to conclude, based on my argument with Sabrent tech support, that the 8TB drive actually has slightly different power requirements from the M.2 specification, and that most enclosures are not compatible with that particular drive. When I used Sabrent's own design for the TB3 enclosure, it is great--my favorite drive. I wish that their tech support had suggested that first, since using their enclosure is a $80 solution for a very expensive SSD.


Bottom line: the OWC and Sabrent enclosures both work fine for all SSDs I tested under 8TB, and only the Sabrent TB3 enclosure works with the Sabrent Rocket 8TB M.2 SSD.


Thanks for the feedback from everyone who took the time to say something, and thanks to the folks at the Apple Store who let me test these enclosures on some of their Genius Bar laptops!



Similar questions

27 replies

Dec 17, 2020 4:31 PM in response to ibskat2

Update... issue not solved yet, but I've isolated the problem to either a defective Sabrent 8TB drive, or widespread compatibility issues with Sabrent drives, not only on the M1 Mac, but also two other earlier Macs Mac to 2018, a Windows 7 surface laptop from 2019 and my Windows 10 PC's Thunderbolt expansion.


I tested the enclosures with a different 500GB M.2 SSD by Crucial, and both enclosures worked perfectly on the M1 and other systems! Unfortunately, Sabrent insists that mine is not a defective drive, and they point the finger at "Bug Sur" which suggests to me that they may not be taking the issue seriously enough. They also conveniently forget to notice to that their drive also failed on four other systems that were not running Big Sur: two macbok pros, a surface and my PC with TB3.


The same technical support person specifically stated that power requirements are different for different drives and he implied that the enclosures may not be adequate. Not true. Both enclosures are certified for their respective busses, and the M.2 spec has a maximum of 7 watts, which is a fraction of what USB-C and TB3 can deliver.


I requested a return for Sabrent to test my drive for defects, and they refused. At this point, I would simply recommend not using Sabrent drives until they can acknowledge that they either sold me a defective drive (most likely) or they have a widespread compatibility problem that nobody mentioned before (less likely).


For the community, I can affirm that the Crucial 500GB M.2 SSD works great with the Envoy Express TB3 enclosure at about 1400 MB/s on an M1, and about 900MB/ss with the same SSD in the Pluggable USB-C enclosure.


No need for further comments (unless it relates to getting better customer support from Sabrent!). I'll post a final update if they actually own up to the problem and fix it... Assume it's unresolved until that post and caveat emptor!




Dec 18, 2020 10:43 AM in response to m010726

Thank you for this thread. I have 2 Sabrent external enclosures that I'm using with a 2TB Sabrent M.2 drive. They will both work on my M1 Mac Mini while plugged into the USB-A port, but not the Thunderbolt/USB-C port. While plugged into the Thunderbolt port, if I do an Apple "system report", I can see the Sabrent drive appearing under the USB 3.1 bus, but not Thunderbolt header. The drive will not appear in Disk Utility.


I don't have a different M.2 drive to try in the enclosures.


Sabrent has also told me that Apple will fix this in a future update.

Jan 20, 2021 8:58 PM in response to IronFather

Sure, I reached out to plugable support and told them about my issue. They quickly responded back asking for my purchase information and swiftly sent me an updated enclosure with a new chipset, which works perfectly. I was out of warranty, so they didn’t have to replace my enclosure, but because of this I am a plugable fan for life!

M1 Compatibility Issue? External Drive is Unreadable / Causes Hard Crashes

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple ID.