TP-Link KP125MP4 4pk Kasa Smart Wifi Plug Slim Energy Monitoring Matter for $74.11.
Amazon.com: TP-Link Powerline WiFi Extender - Add-on Single Adapter, Ethernet over Powerline, Plug & Play, Compatible with all TP-Link powerline adapters with different speed, AV600 with N300 WiFi(TL-WPA4220) : Everything Else