300 Mbit / s WLAN Stick Gold Edition C103 with detachable antenna, particularly high coverage, wireless LAN, USB 2.0 Stick, Mini Dongle 802.11n / b / g, SMA socket 150 54, Windows 7 + Windows 8 + Windows 8.1 compatible (Electronics)
120 Mbit / s arrive at my cable modem, 20Mbit / s, there are on my computer, over Wi-Fi, two rooms on. This 300 Mbit / s WLAN stick is also only 20Mbit / s. A look in the device manager tells me: Realtec RTLSU8191 network adapter # 2. This means that