Newegg offers the Linksys Powerline AV 4-Port Network Adapter Kit, model no. PLSK400-NP, for $39.99 with free shipping. That's tied with our September mention as the lowest price we've seen and is currently the lowest total price we could find by $13. The kit includes a Powerline AV adapter to connect the router and a Powerline adapter with four Ethernet ports.