TP-Link TL-PA4010 KIT AV600 Powerline network adapter (500Mbps, 1 port, energy saving, plug and play, compatible with other brand adapters, set of 2) white : Amazon.co.uk: Computers & Accessories
Powerline 500 AV Nano Adapter - TRENDnet TPL-406E
Netgear XAVB5421 Powerline 500 1 Port on Servers Direct