T7 Shield very slow in reading and writing

[keng75]

Hello everyone,

My 4TB T7 Shield SSD doesn't exceed 44 MB/s read speeds!

I ran the tests with Crystal Disk, which found nothing abnormal. I tested it with another 2TB Samsung T7 SSD, then I changed the location of the USB 3.0 port, the cable, etc. Nothing worked, I don't exceed 44 MB/s read speeds and 36 MB/s write speeds. It's formatted in exFAT.

My mini-PC is the Geekom A5 with 32 GB of RAM and Windows 11 Pro. The other two SSDs connected directly to the motherboard give good results, close to those given by the manufacturer.

If you have any suggestions, I'm all ears.

Thank you.

[andytruman]

That definitely sounds off. I had a similar issue and it turned out Windows had set the drive to "Quick Removal" mode by default. Try going into Device Manager > Disk Drives > Properties > Policies tab and switch to "Better Performance", then reboot. Also, double-check that it's really using a USB 3.x port not just blue-colored but confirmed in system info. That fixed it for me. Good luck!

[keng75]

Hello,
Thank you for your reply. You were right, the cause was a faulty cable which, despite its blue marker, was USB 2.0.
Everything is back to normal.

Thanks again.

[andytruman]

good to hear

[bendavis983]

I'm having similar unresolved issues, getting usb2 speeds on both my laptop and pc on my T7 1TB drive.

samsung magician confirms it is connected as usb2 and no matter what cables i use its always the same result.

however, logging into linux on the same pc gave usb 3 speeds 

[andytruman]

Sounds like a Windows driver issue. If it works fine on Linux but not on Windows, try reinstalling or updating the USB drivers in Device Manager. Also, check for any Samsung drivers or firmware updates.