Question: how do i connect my iphone to my macbook pro 2017?
Answer: Option B: USB-C to Lightning cable If you're worried about losing a little dongle, you can opt to get a USB-C to Lightning cable instead. This cable allows you to plug your iPhone directly into the Thunderbolt 3 port on your new MacBook Pro; no fuss, no muss. You can pick up Apple's official cable for about $25.