TR-004 USB3.2: MacOS Sequoia 15.4.1 negotiates USB2 connection only

My TR-004 - in spite of being a USB 3.2 - is recognized by MacOS Sequoia 15.4.1 as a USB2 external storage device. Any help?
Thanks!

Maybe try a better cable?

Tried already three different cables, including one the iMAC came with, all 1m or shorter.

Seems Sequoia had a history of problems with USB: USB ports not working right after macOS Sequoia update