USB 3.0 Passthrough to Windows Server 2008 -- ESXI 5.5

Hi everybody,

I am trying to add a usb 3.0 port to a vm with Windows Server 2008 r2. The USB xHCI controller has been added correctly but I can't find the appropiate driver to install on the vm. My vm version is 8 and my host has ESXI-5.5.0.

I tried with this drivers: Downloads for Intel® USB 3.0 eXtensible Host Controller Driver without success.

Any idea?

Thanks!!