The Linksys Powerline AV Network Kit contains a single-port Powerline AV Adapter, and a four-port Powerline AV Adapter, which let you easily create a network using the existing electrical outlets in your home. Now you don't have to drill holes in walls and climb through the attic or cellar to install network cables -- just use the wires that already run through the building. With Powerline AV Network Adapters, you can connect computers or any other wired Ethernet device using the HomePlug AV network standard. Adding devices to the network is as simple as plugging a Powerline AV Adapter into an electrical outlet, and connecting your Ethernet-equipped devices to the built-in Ethernet ports. Additional devices can be connected to the same network using additional Powerline AV Adapters plugged into an electrical outlet anywhere in the house.Once your computers are connected to the network, they can share resources like printers and storage space, and all kinds of files -- video, music, digital pictures, and documents. With up to 200Mbps data rates*, you can play virtually lag-free head-to-head network computer games, and run applications like streaming standard or HD video, and Voice over IP telephony. Plug your Internet connected router into a Powerline AV Adapter and you'll be able to get to the Internet from any Powerline AV attached computer in the house. The Linksys Powerline AV Network kit gets you started with easy,no new wires, home or office networking. The HomePlug AV network data rate is up to 200Mbps. Actual throughput of the PLE300 is limited to 100Mbps by the Ethernet 10/100 specification, and will vary depending on network traffic and environmental conditions such as building wiring type and routing.