HomePlug
From Amazon
devolo Magic 2-2400 LAN Triple: Add-on Powerline Adapter (Up to 2400 Mbps for Your Powerline Home Network, 3x Gb LAN Ports, Ideal for Online Gaming, 4k/8k UHD Streaming, Stable Home Working)
EE Store
Devolo Magic 2 LAN TRIPLE Add-On Adapter (3x LAN, Pass-Thru)