Newegg offers the Trendnet 500Mb/s Powerline AV Ethernet Adapter Kit, model no. TPL-406E2K, for $34.99. Coupon code "EMCFFGH43" cuts it to $19.99. With free shipping, that's tied with our September mention as the best price we've seen. (It's a low by $15.) This plug-and-play Ethernet kit uses your existing electrical outlets to create a secure 500Mbps high-speed, building-wide network. Deal ends November 27.