iPhone connected with my Macbook Pro (USB)

Hello kemal217,

Thank you for posting in the Apple Support Communities. We'd like to share some information with you.

That prompt can sometimes appear the first time you connect the iPhone to the Mac, and you can select either option that applies to your device. If you don't want to set it up as a new device, you can select the back up option.

Here is a list of tasks you can complete when your iPhone is connected to your Mac:

Connect iPhone and your computer with a cable

We hope this information is useful. Kind regards.

kemal217,

Thanks for getting back in touch with us. It's our pleasure assisting you.

Backing up your iPhone to your Mac works in a similar way you might create an iCloud Backup. It simply makes a copy of the data on your device. Backing up your iPhone to your Mac takes up some storage space, but you can delete old or unwanted iOS backups.

The resources below explain more about backing up to your Mac, and how to locate and delete iOS backups:

How to back up your iPhone, iPad, and iPod touch with your Mac

Locate backups of your iPhone, iPad, and iPod touch

Have a great rest of your day or evening.