Newegg offers the ZyXEL AV Powerline Wall Mount Ethernet Pass-Through Adapter 2-Pack, model no. PLA5215KIT, for $66.73. Coupon code "EMCASAK39" cuts it to $54.99. With free shipping, that's $5 below our October mention and the lowest total price we could find now by $23. These adapters use your existing electrical outlets to create a secure high speed building-wide network. They support up to 600Mbps data transfer rates. Deal ends May 7.