Edimax 802.11n Wireless USB Adapter for $15 + free shipping
Meritline offers the Edimax 802.11n Wireless USB 2.0 Adapter, model no. EW-7622UMn, for $19.99. Coupon code "MLCF18UN" cuts it to $14.99. With free shipping, that's the lowest total price we could find by $3. It supports speeds up to 300Mbps and WEP, WPA, and WPA2 encryption. Coupon expires after 300 uses.
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