Newegg offers the TP-Link AV Nano Powerline Adapter Starter Kit, model no. TL-PA2010KIT, for $28.99. Coupon code "EMCARPA47" cuts it to $19.99. With free shipping, that's tied with our mention from a month ago as the lowest total price we've seen. (It's also a current low by $8.) These adapters allow you to create a network using your home's existing electrical wiring and feature speeds of up to 200Mbps. Deal ends May 6.