Pair of Devolo dLAN 200 AV Wireless adaptors (Hove Park area BN3)

The Devolo dLAN 200 AV Wireless is a network adaptor that enables users to easily extend their home network without the need for additional wiring. Through its powerline technology, this device utilizes existing (13A) electrical wiring in a user's home to create a reliable and secure network connection.
Quite old but I've just tested this and it works, but you need 2 Ethernet cables RJ45 to go between these adaptors and your devices, such as router at one end and a PC/laptop at the other end (which needs an RJ45 socket or you can get an adaptor for USB). Best to plug them in to a 13A mains socket on the wall, not an extension lead. Very large separations between the devices, say over 50m, and they might not work. Both need to be on same household supply . Download software: https://www.devolo.global/support/download/download/devolo-cockpit which measures speed but not used for operation.