TigerDirect offers the TRENDnet 500Mbps Powerline AV Ethernet Adapter Kit, model no. TPL-406E2K, for $19.99 with free shipping. That's $5 under last week's mention and the best outright price we've seen . (It's also a current price low by $6.) This plug-and-play Ethernet kit uses your existing electrical outlets to create a secure 500Mbps high-speed building-wide network.