The TP-LINK TL-WN422G Wireless USB Adaptor gives you the flexibility to install the PC or notebook PC in the most convenient location available without the cost of running network cables. With powerful 4dBi detachable antenna the TL-WN422G remains excellent performance in the long range and bad environment it can receive signal from wireless base even separated by 2 floors. The USB adaptor can be plugged to the laptop directly or put on the table convenient and portable to carry it´ s a right choice if you need a pocket USB adaptor.