Newegg offers the refurbished ASUS 802.11n Wireless USB Adapter, model no. USB-N13, for $9.99. A $10 mail-in rebate cuts the price to $0. With $2.99 for shipping, that's a buck below our Thanksgiving mention for a new one and $17 under the best price we could find for a new one today. It features data transfer rates of up to 300Mbps. Rebate expires May 31.

A 90-day warranty applies, but it's unclear who backs it.