
Firstly, launch the Terminal app from the Utilities folder and type in the following command - ln -s /Volumes/ExternalHD/iTunesBackup/Backup/ ~/Library/Application\ Support/MobileSync/Backup.Once your Mac has entirely copied the Backup folder, rename the original one (find it in /MobileSync/ folder) to a different name. Now, open the folder on the external drive that you just created and press Command + V to paste it there. Highlight the folder with a click and press Command + C to copy it.Type this - ~/Library/Application Support/MobileSync/

There, press Command + Shift + G to open the "Go to Folder" option. Once you have set up your hard drive on your PC, create a folder in it where you will keep your iTunes backup, and name it, for example: "iTunes Backup".

USB 2 or Thunderbolt ones will work as well, don't worry.
CAN I BACKUP IPHONE TO MACBOOK EXTERNAL HARD DRIVE HOW TO
Those of you wondering how to backup iPhone to an external hard drive, just follow these 3 steps accordingly, and it will be done. Part 1: How to Backup & Restore iPhone to External Hard Drive How to Backup & Restore iPhone to Computer

