As one of its daily deals, Amazon offers its Prime members the TP-LINK AV Nano Powerline Adapter Starter Kit, model no. TL-PA4010KIT, for $27.99 with free shipping. (Non-members can spend $35 or more to bag free shipping; otherwise it adds $8.58.) That's $2 under our October mention and the lowest price we've seen. (It's a current low by $12.) These adapters allow you to create a network using your home's existing electrical wiring and feature speeds up to 500Mbps. Deal ends today.