Meritline offers the Airlink101 5077 11n Wireless Mini USB 2.0 Adapter, model no. AWLL5077, for $14.99. Coupon code "MLCK710QNL1" cuts it to $8.99. With free shipping, that's the lowest total price we could find for this adapter by $3. It's compatible with PCs and Intel-based Macs and features IEEE 802.11n standard, WEP, WPA2, and WPA-PSK encryption, a maximum data transfer rate of 150Mbps. Coupon expires after 200 uses.