For its newsletter subscribers only, newegg offers the ZyXEL Mini Powerline AV 500Mbps Ethernet Adapter 2-Pack, model no. PLA4201KIT, for $74.99. Coupon code "EMCJNHG89" cuts it to $49.99. With free shipping, that's tied with our mention from last month as the lowest total price we've seen for this kit. (It's also a current price low by $10.) 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. Deal ends October 26.