For its newsletter subscribers only, newegg offers the TP-LINK AV Nano Powerline Adapter Starter Kit, model no. TL-PA4010KIT, for $54.99. Coupon code "EMCXTXW67" cuts it to $44.99. With free shipping, that's the lowest total price we could find by $10. These adapters allow you to create a network using your home's existing electrical wiring and feature speeds up to 500Mbps. Deal ends March 7.