For its newsletter subscribers only, newegg offers the TRENDnet Powerline AV Ethernet Adapter Kit, model no. TPL-303E2K, for $59.99. Coupon code "EMCKAHC23" drops it to $49.99. With free shipping, that's $10 under our July mention and the lowest total price we could find by $15. This plug-and-play Ethernet kit uses your existing electrical outlets to create a secure high speed building-wide network.