EW-7811Un is a Nano USB wireless adapter that supports maximum range and speed. Despite the size, this tiny USB adapter supports higher data rate of up to 150Mbps when connecting with a wireless 802.11n device which is 3 times faster than your normally 11g connection. You can just plug it into the USB port of your computer and enjoy incredible high-speed wireless network access. This is, for sure, the trendiest piece of upgrade you can make to your wireless network.