a che ti serve

what do you need it for?

→ a
phrase Rare #33,279
what do you need it for? The verb changes form to agree with what is needed: “a che ti servono?” means “what do you need them for?”
IT: A che ti serve questa chiave?
EN: What do you need this key for?

A che ti serve l'acciaio giapponese?

What do you need Japanese steel for?

— Kill Bill: The Whole Bloody Affair (2011)

Se hai dieci miliardi in banca, a che ti serve una moglie divertente?

If you have ten billion in the bank, what do you need a funny wife for?

— Zindagi Na Milegi Dobara (2011)

Dunque a che ti serve?

So what do you need it for?

— Addio mia concubina (1993)

Ma a che ti serve?

But what do you need it for?

— Happy as Lazzaro (2018)

A che ti serve?

What do you need it for?

— Fuck you, prof! (2013)