mwave offers the PremierTek PowerLink 802.11n Wireless Ultra Long Distance Indoor and Outdoor USB Adapter, model no. PL-2712N, for $34.99 with free shipping. That's $2 under our April mention (which also included a $3 credit) and the lowest total price we could find by $13. Claiming an operating distance of up to 2,000 meters (1.24 miles), it features a max speed of 150Mbps, 12dBi dipole antenna, and support for WEP, WPA2, and WPA-PSK encryption.