For its newsletter subscribers only, newegg offers the TRENDnet 500Mbps Powerline AV Ethernet Adapter Kit, model no. TPL-406E2K, for $48.99. Coupon code "EMCXNXV96" cuts it to $39.99. With free shipping, that's $4 under our May mention and the best price we've seen. (It's a current price low by $9.) This plug-and-play Ethernet kit uses your existing electrical outlets to create a secure 500Mbps high-speed building-wide network. Deal ends July 3.