Amazon offers the TP-Link AV600 Gigabit Powerline Adapter Kit, model no. TL-PA6010KIT, for $59.99. Clip to $10 off coupon on the product page to drop it to $49.99. With free shipping, that's the lowest total price we could find by $10, although we saw it for $5 less in December. These adapters allow you to create a network using your home's existing electrical wiring and feature speeds up to 600MB/s.