
The size of System Data varies depending on the state of your Mac. System Data contains files that do not fall into categories such as Documents, Apps, iCloud Drive, Photos, Other Users, etc. So what exactly is it? What Is System Data on Mac? In this case, the System Data is 136.63 GB and is taking up the largest part of my storage space. Hover your cursor over each category, you can know its name and size.Hover over a color to see its category and the amount of space it uses.You'll see a colored bar, with each color representing a category.(On macOS Monterey, choose Apple menu > About This Mac > Storage.)



Choose Apple menu > System Settings > General > Storage.Also Read: How to Free Up Space on Mac How to Check System Data Storage on Macīefore understanding what System Data storage is, let's check how much space it is using on your Mac.
