Powerline Network Adapters use your home’s existing electrical wiring to create a network and can supplement or replace a wireless network.
Every power outlet becomes a potential network port for easily connecting computers, digital media devices, game consoles, print servers and network storage devices throughout your home or office.
They are capable of delivering data transfer rates of up to 200Mbps. This fast transmission speed is suitable for transferring or backing up large amounts of data, HD video streaming, VoIP calls, and online gaming.
Starter kit's start at around £60 for example: http://tinyurl.com/347u36p or http://tinyurl.com/38aopbt
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