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    CYUSB3304 superspeed not recognized by PC



      I built a custom PCB based on CYUSB3304-68LXTC. The circuit is a reproduction with minor changes of the reduced BOM schematic downloaded from cypress.com The hub is recognized by Windows 10 as a "Generic HUB" and it works perfectly with USB 2.0 devices (I connected up to 3 devices simultaneously). But if I connect as USB 3.0 device (such as a pen drive) the PC does not recognize it. An interesting fact that I noticed is that if I insert the Superspeed pen drive only for half of its length (such as only 2.0 pin are connected) the drive is recognized but obviously works at 2.0 speed. Any advice? If needed I can share the schematic and the gerber files or other.

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