For its newsletter subscribers only, Newegg offers the TP-LINK AV Nano Powerline Adapter Starter Kit, model no. TL-PA2010KIT, for $29.99. Coupon code "EMCPHHP78" cuts it to $24.99. With free shipping, that's tied with last month's mention and the lowest total price we could find by $5. These adapters allow you to create a network using your home's existing electrical wiring and feature speeds of up to 200Mbps. Coupon expires February 22.