PremierTek PowerLink 802.11n USB Adapter for $10 + free shipping
mwave offers the PremierTek PowerLink 802.11n Wireless USB Adapter, model no. PL-H5DN-3070, bundled with a $6 mwave Gift Credit, for $9.99 with free shipping. That's tied with our mention from three weeks ago (which didn't include the credit) and the lowest total price we could find by $5. It features a max speed of 150Mbps, support for WEP, WPA2, and WPA-PSK encryption, and more.