Ending today, newegg offers the TP-LINK AV Nano Powerline Adapter Starter Kit, model no. TL-PA4010KIT, for $39.99. Coupon code "SAVETENOCT18Q" drops it to $35.99. With free shipping, that's $2 under yesterday's expired mention and the lowest total price we could find by $4. These adapters allow you to create a network using your home's existing electrical wiring and feature speeds up to 500Mbps.