I have the TP link TL-WPA4530 powerline adaptor fitted to my summerhouse to supply wifi in there and to my garden. It works brilliantly, my only problem is I would like to add another adaptor to the network to supply my my upstairs and I can't seem to find just the receiver on it's own. The ones I see for sale all come in a kit with both the sender and receiver units. Sorry if I'm being an idiot but could someone please point me in the right direction?