View your device in the Finder
Starting with macOS Catalina, your devices appear in the sidebar of the Finder. Click the device to select it.
View your device in iTunes
Make sure you have the latest version of iTunes. If you're using Windows or macOS Mojave or earlier, your device will be shown in the top left-hand corner of the iTunes window. If you can't see your device on your computer, find out what to do.
If you have multiple devices connected to your computer, click the device icon, then choose your device from the menu.