@Kevin_Z So if I hear you correctly and understand your referred link, I would connect the TL-PA7010 to the router, and then I can use the TL-WPA7510 for Wifi and connect one to any device and pairs...

I currently have a TL-PA9020P KIT. I need another powerline adapter to another floor. May be this if I want to have wifi and also one gigabit port, TL-WPA7510 KIT? (1) On the PA9020P, I am using one...