Devolo 500 Wifi (The Cure to Poor Wifi) | Review - YouTube
User manual Devolo dLAN 500 AVpro+ (English - 33 pages)
Devolo Dlan 550 Duo+ Powerline Starter Kit (500 Mbps, 2 X Plc Homeplug Adapters, 2 X Lan Ports, Pass Through, Internet Signal Booster, Ethernet Access Over Power Line) : Amazon.co.uk: Computers & Accessories