basic product (only 100mb / s) but is recognized immediately by the bios of my lenovo yoga February 13 to achieve a pxe boot server on Windows (WDS image deployment service) pity that the bios of these machines only tolerated this chipset currently. it will serve me for the deployment image. Then I will return on my usb dongles> Gigabit Ethernet (until these last are also recognized during an al bios maj)