Meritline offers the factory-refurbished Linksys Cisco AE1000 802.11n Wireless-N USB 2.0 Network Adapter for $20.99. Coupon code "MLC77JWNL1" cuts it to $14.99. With free shipping, that's tied with our May mention and the lowest total price we could find by $4. It features WPA and WPA2 encryption. A 90-day Linksys warranty applies. Coupon expires after 600 uses.