NETGEAR Powerline adapters turn any electrical outlet into a Home Network and Internet connection

Powerline AV Ethernet Adapter Kit XAVB101 turns any electrical power outlet into a high speed Internet and home network connection, no new wires at 200 Mbps. Extends home network using electrical outlets. Fast enough to stream HD video. Plug and play: just plug into a wall outlet, no setup required.

Features
Turns any electrical power outlet into an Ethernet network connection
Delivers fast 200 Mbps speed†
Secure your Powerline AV network by just pushing a button
For use with both wired and wireless routers and gateways
Simply plug one XAV101 into your router and another XAV101 into any Ethernet-ready device1
Connect a desktop, notebook PC, gaming console, NETGEAR ReadyNAS™, a DVR or NETGEAR Print Server (PS121)
128-bit AES data encryption ensures privacy and security
Red, yellow, green status LEDs indicate maximum data rate
Supports Windows® Vista™
HomePlug AV compatible.

Source: www.netgear.com