Toto link- usb adapter- n300ua

N300UA is a Wireless USB Adapter which complies with IEEE 802.11n standard and can deliver up to 300Mbps high-speed wireless data rate. One WPS (Wi-Fi Protected Setup) button allows you to establish high security connection by fast-click. So it is a ideal PC solution to access fast WLAN network.

High Speed Performance
Complying with 802.11n standard, N300UA provides up to 300Mbps wireless transfer rate for users to enjoy the best Wi-Fi connection with stable throughput.

Two Detachable Antennas
With two detachable 4dBi antennas. N300UA provides more stable Wi-Fi connection and wider coverage.

One Click WiFi Protected Setup 
To secure wireless connection, the adapter provides a WPS button so that users can easily setup a wireless connection with protection just by one click.