Amazon offers the Linksys Powerline AV 802.11n Wireless Network Extender, model no. PLWK400, for $69.99 with free shipping. That's the lowest total price we could find by $13. Sales tax is added where applicable. It allows you to expand your home WiFi using existing powerlines. The kit includes a Powerline AV adapter to connect the router and a Powerline adapter with WiFi access point to connect one Ethernet device plus multiple wireless devices.