Use Newegg coupon code EMCNANC54
Newegg has this Actiontec Powerline Ethernet Kit Up to 200Mbps for $49.99, but you can get it for $39.99 when you use the coupon code. Features data transfer speeds of up to 200Mbps, plug-and-play setup, and turns your existing electrical lines into a home network. Tiger Direct
has the same item for $44.99. Shipping is free.