Meritline offers the PremierTek PowerLink Hermes 300Mbps 802.11n Wireless USB Adapter with Dual 9dBi Dipole Antenna, model no. PL-18N, for $39.99. Coupon code "MLC416PN" cuts it to $29.99. With free shipping, that's the lowest total price we could find by $10, although we saw it for $5 less two weeks ago, since expired. It features a max speed of 300Mbps, operating distance of up to 1.2 miles, purported 10x signal strength and 1000mW power output, dual 9dBi dipole antennas, and support for WEP, WPA2, and WPA-PSK encryption. Coupon expires after 200 uses.