What a surprise to unpack! Mini size, maximum performance for this USB Wifi! Installation carefree on any OS: Hercules Wireless N USB Pico => Realtek RTL8188 (So the Heavy! Stable!) Go for it if you are looking for an excellent price / quality / size @ Recommended for Laptops, netbooks and other formats with only the wireless B or G of origin! Free world supported (test Ubuntu OK)