TRENDnet 300 Mbps Dual Band Wireless N USB 2.0 Adapter TEW-664UB (Black)

In addition to the convenient backward compatibility, its dual 2.4 and 5.0 GHz bands provide more options when it comes to wireless channel support. Your neighbors could be using the same band and channel you are, so by simply switching to a lesser-used one you can dramatically improve your network's performance. This added performance is also helped by the three separate antennas that are connected to the adapter--greatly enhancing the sensitivity to the Wi-Fi in your home or office.