Hello Davidlie,
The small one in the TL-WPA4220KIT is also a TP-LINK TL-PA4010. If you buy both kits, one of the three TP-LINK TL-PA4010 is the adapter that is connected to the router (or switch). You can connect one end device (laptop, game console, TV, etc.) to each of the other two TP-LINK TL-PA4010s using an Ethernet cable.
You can connect two devices to the TL-WPA4220 via cable and, if available, also extend the WLAN from your router to another zone.
Take a look at the TL-WPA4220KIT brochure:
https://static.digitecgalaxus.ch/Files...
I would like to hear later whether you have expanded your network in this way and whether you are satisfied ;-)
Greetings TB
