Map livery unmanned forcing it to search on the Internet. But is not the problem. This card once that is installed and recognized by my Dell Vostro 420 under W7 Pro, only recognizes the mouse and keyboard of my computer, that have no use from a USB3 connection. But she did not recognize any of the 3 external SATA or SSD external drive which they were intended him !! No problem with the Amazon service that reimburses the card without discussion. Given the many favorable opinions issued by other clients, I probably fall on a "failure" of production, despite the stamp "QA Passed" displays with the card.
