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As in the title, I have a network which uses a TL-PA4020 extender.

I wish to place another extender on the same electrical circuit but am unable to find a PA4020.

Will a TL-WPA4220 serve as a substitute, does anyone know - mor is there another model which could offer a similar/better (or even cheaper) option? The WPA4220 I have found is selling for £30.

Many thanks.:D

JCS