Newegg offers the TP-LINK AV Nano Powerline Adapter Starter Kit, model no. TL-PA4010KIT, for $39.99. Coupon code "EMCPCHF24" cuts it to $29.99. With free shipping, that's tied with our May mention as the lowest total price we've seen. (It's also a current low by $9.) These adapters allow you to create a network using your home's existing electrical wiring and feature speeds up to 500Mbps. Offer ends July 30.