easy installation on a win XP service pack 3 but we must tie together the computer .. N works with wifi and wifi B / G, boxing and SFR Liveboxe. works with USB 1.1 (not mentioned on the carton). less efficient than a WiFi PCMCIA card or usb wifi N 300 (up and down speed ADSL) unobtrusive and barely visible on a black colored computer. I am satisfied with the operation.