TP-LINK TL-WPA4220KIT AV600 Powerline 300M Wi-Fi Extender Signal Booster Hotspot
Found and for sale! tp-link AV600 Powerline Wi-Fi kit TL-WPA4220 KIT complete with part of its original box and ethernet cables. This was installed at my parents place before they downsized. As this is no longer required, it's up for sale.