For its newsletter subscribers, newegg offers the ZyXEL Mini Powerline AV 500Mbps Ethernet Adapter 2-Pack, model no. PLA4201KIT, for $43.99. Coupon code "EMCPCHE85" cuts it to $29.99. With free shipping, that's tied with our mention from a year ago as the lowest total price we've seen for this set. (It's also a current price low by $14.) These compact adapters use your existing electrical outlets to create a secure high speed building-wide network. They support up to 500Mbps data transfer rates.