TigerDirect via Buy.com offers the TP-LINK 802.11n Wireless USB 2.0 Adapter, model no. TL-WN822N, for $19.99 with free shipping. That’s the lowest total price we could find by $5. It features dual 3dBi omni-directional antennas, a maximum data transfer rate of 300Mbps, 64-bit/128-bit/152-bit WEP/WPA/WPA2/PSK support, and more.
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