eXpansys offers the refurbished Linksys Cisco AE1000 802.11n Wireless-N USB 2.0 Network Adapter for $16.99. With free shipping, that's the lowest total price we could find for this refurb by $2, although we saw it for $2 less in May (since expired). It's also $41 below the best price we could find for a new one. It features WPA and WPA2 encryption.

No warranty information is provided.