eBay might have some similar problems as Amazon (fly-by-night retailers from China etc), but at least it doesn't pretend otherwise.
Or from Denmark, but delivery is probably expensive. (Within-EU delivery costs is something I'd like to see the EU improve, to allow smaller businesses to compete internationally with Amazon etc.)
https://www.computersalg.dk/i/2335209/startech-com-cat5e-rj4...
It’s rough, because you know that it will probably be cheaper and delivered faster from Amazon, at the moment it is probably the most consumer friendly place to buy. But you know once the honeymoom is over and all the Swedish retailers are gone, it’s just going to devolve to garbage. Support your non-Amazon retailers!