Newegg offers the TRENDnet 200Mbps Powerline AV Ethernet Adapter Kit, model no. TPL-308E2K, for $34.99. Coupon code "EMCPAPF57" cuts it to $19.99. With free shipping, that's tied with our mention from two weeks ago as the lowest total price we've seen for this kit. (It's also a current price low by $9.) This plug-and-play Ethernet kit uses your existing electrical outlets to create a secure 200Mbps high-speed building-wide network. Coupon expires September 10.