u/kataksha

Hi all
I just moved into a new place. It has old copper wire system. Did I buy the correct adaptor and cable for the internet?
I already have the router

Edit: Thanks everyone. It worked and connected to the internet just fine. I live in a regional town and could only find the 10m long cable at the Bunnings. Internet speed seems to be fine at the moment but I’ll definitely replace with shorter one in near future.