Mac Studio M4 - USB A Port Trouble

In short, it seems that I can only connect a USB 3.0 hub (with all USB-A plugs) to the rear Thunderbolt ports with USB-C adapter. Same issue was already here on Mac Studio M2 for another user.

To prevent power trouble from mac studio, I brought expensive TB4 hub :

• UGREEN Revodok Max 213 - no USB A Was working directly -- USB-A to USB-C Did work on TB4 slot.
• i finally choose CalDigit Thunderbolt 4 Pro Dock because it was flagged as compatible for Mac Studio (2025) on apple store ..

But guess what ? Same issue with CalDigit TS4 Thunderbolt & Mac Studio M4 - USB A Port Trouble

After may tries always back to this configuration : a cheap USB-c tied to thunderbold port work but not an expansive dock with power supply ...