Dura Ace Chains - Quick link?

[oldguy00]

Hey all, I'm a long time KMC chain user, but my stash is running low and was thinking of getting a dura ace chain for the season.
Do they now come with their own quick link? If yes, is it OK to re-use it, like when removing chain to re-wax?
And if they do not come with one, are folks using links from other brands like KMC with them problem free?

Thanks!!