Just ordered a 16'' M1 Max MacBook Pro, and want to buy a external SSD. Currently deciding between Samsung T7 (USB gen3.2 2x1, 10Gb/s) and SanDisk Extreme Pro (USB gen 3.2 2x2, 20Gb/s). It seems that m1 MacBooks only support USB gen3.2 2x1, although Apple claims that they support usb4, I wonder if it's the same for the M1 Pro / Max MacBooks.
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Does MacBook Pro 2021 support USB gen3.2 2x2 now?
- Thread starter BLUE_SHELL
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I'll second that...I have an external SSD rated at 2GB/sec and my Intel MacBook is capped at 1GB/sec (as is the M1 MacBook). I'm hoping the MacBook M1 Pro/Max is faster...otherwise I overpaid for this SSD and should save money on future external SSDs.
No it doesn't. My Sandisk Extreme Pro V2 is still maxing out at 1GB/s. It should get 2GB/s on a 2x2 port.
If you want great external SSD speed then only Thunderbolt seems to be the solution.=
M1 Pro and M1 MAX should be using the same Apple USB controllers as M1 so whatever speeds you are seeing under M1 is what you should be seeing under M1 Pro and M1 MAX.
I just bought two of these SanDisk 4TB Extreme PRO Portable SSDs and can confirm this. I can also tell you that right now they will not format on the M1 MacBook Pros. An Apple tech support rep helped me through this problem and told me Apple is working on a fix in an update to Monterey. For now, the solution was to format my SanDisk 4TB Extreme PRO Portable SSDs on my 2017 MBP (running Catalina, though he suspected Big Sur would also work). They formatted with no problem on that 2017 MBP.