AmazonOLD has this Diamond Wireless N Range Extender Sale Priced at $21.24 when you clip the $10 coupon on the product page. Free Shipping for Prime members or with $35+. Click Clip Coupon to activate coupon.

The Diamond Multimedia 300Mbps 802.11n Wireless Repeater Range Extender with Wireless Access Point and Wireless Bridge plugs into an AC outlet to repeat and extend your existing wireless signal to areas where your router or access point is not able to reach. Eliminates the use of cable wires while providing reliable wireless connection. Has Ethernet port to plug in wired devices.