I have a new MacBook Air. It has two Thunderbolt 3 / USB 4 ports. The specs claim support for slower USB 3.1 Gen 2 (10Gb/s) speeds.
I just got a 1TB Crucial P3 NVMe gumstick drive and first had it in this case. (I know the drive is not exactly "top-of-the-line" and neither is the case). What's a little strange to me are the speeds I was seeing:
(Freshly formatted APFS, empty drive, directly connected - no hub. 5GB stress test, same numbers with 1GB stress).
The write speed seems fine but the read speed being half the write speed seems a little weird. I assumed it was the no-name-brand case, so I returned it and just got another one - yea, it's kind of a "budget" model too: link. I am seeing exactly the same speeds with this case.
Here's the thing - I don't really know the typical speeds I should be seeing with this kind of setup. The bare drive itself claims "up to 3500 MB/s" speed which of course I know is not possible in any external USB 3.1 Gen 2 case. I am only wanting to know if the speeds I'm seeing seem correct for the type of case it's installed in. If not, is it really possible I got two bad cases, or is there perhaps an incompatibility between the drive's Phison controller and bridges in these low-cost cases? Or would you return the SSD? TIA for any advice!
I just got a 1TB Crucial P3 NVMe gumstick drive and first had it in this case. (I know the drive is not exactly "top-of-the-line" and neither is the case). What's a little strange to me are the speeds I was seeing:
(Freshly formatted APFS, empty drive, directly connected - no hub. 5GB stress test, same numbers with 1GB stress).
The write speed seems fine but the read speed being half the write speed seems a little weird. I assumed it was the no-name-brand case, so I returned it and just got another one - yea, it's kind of a "budget" model too: link. I am seeing exactly the same speeds with this case.
Here's the thing - I don't really know the typical speeds I should be seeing with this kind of setup. The bare drive itself claims "up to 3500 MB/s" speed which of course I know is not possible in any external USB 3.1 Gen 2 case. I am only wanting to know if the speeds I'm seeing seem correct for the type of case it's installed in. If not, is it really possible I got two bad cases, or is there perhaps an incompatibility between the drive's Phison controller and bridges in these low-cost cases? Or would you return the SSD? TIA for any advice!
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