Etekcity USB 300M WiFi Wireless Network Adapter: High power, long distance, 802.11 B/G/N, 2.4 GHz, 300 Mbps transfer rate, Realtek RTL8191SU chipset, compatible with Windows 32/64 bit, Mac, & Linux, single 6dBi antenna, great for speeding up your signal with notebooks, laptops, desktops, PCs, & computers. Turbocharge your wireless operation USB connection  plug-and-play installation on Windows 7 & 8 Up to 300 Mbps transmission rate, supports 802.11 B/G/N Single high-gain 6dBi antenna for high performance Compatible with Windows, Mac, and Linux Realtek RTL8191SU chipset