For my part, I regret the absence of instructions for installing the product. Indeed, the card comes with a CD containing several drivers without explanation Here are the steps to follow: You must install the card, start the machine, go to the folder "NEC720201-202" cd and run the executable "RENESAS-USB3-Host-Driver-30230-setup" Then I had a problem: external ports but walked the devices connected to the internal port is permanently logged out. I managed to solve this problem by going to the Device Manager, USB bus controllers, Renesas Electronics USB 3.0 Host Controller, unguled "advanced" and I disabled the USB 3.0 power management functions.