Ending today, Newegg offers the TRENDnet 200Mbps Powerline AV Ethernet Adapter Kit, model no. TPL-308E2K, for $29.99. Coupon code "EMCAPKW26" cuts it to $19.99. With free shipping, that's tied with our September mention as the lowest total price we've seen for this kit. (It's also a current price low by $5.) This plug-and-play Ethernet kit uses your existing electrical outlets to create a secure 200Mbps high-speed building-wide network.