Ending today, Newegg offers the Tenda P200 Powerline Mini Ethernet Adapter 2-Pack for $29.99. Coupon code "EMCPFWP35" drops it to $19.99. With free shipping, that's tied with our January mention and the lowest total price we could find now by $10. These adapters use your existing electrical outlets to create a secure high speed building-wide network. They support up to 200Mbps data transfer rates.