![Two images of Mac Pro: an end view and a side view.](https://help.apple.com/assets/646BA1F028A6766AF70D82D8/646BE2C59BBA75275D56B328/en_US/fbac8523b0d81e806024f9d46cb3b976.png)
![Closeup view of Mac Pro ports and connectors.](https://help.apple.com/assets/646BA1F028A6766AF70D82D8/646BE2C59BBA75275D56B328/en_US/bc010597fdbc8665fbd87172175e5e33.png)
![Internal view of Mac Pro tower.](https://help.apple.com/assets/646BA1F028A6766AF70D82D8/646BE2C59BBA75275D56B328/en_US/9d05f1d904c54f14314d918d3ffcf6ef.png)
![The Startup Security Utility window is open and Macintosh HD with macOS 13.4 is selected.](https://help.apple.com/assets/646BA1F028A6766AF70D82D8/646BE2C59BBA75275D56B328/en_US/0f2eda1b8be871ff037a8f6b75ca2a76.png)
Secure storage and secure boot
Built-in security features ensure your data is safe and your computer starts up only with legitimate macOS software.
![iCloud content being accessed across various devices.](https://help.apple.com/assets/646BA1F028A6766AF70D82D8/646BE2C59BBA75275D56B328/en_US/ed42ec888cc87e2f778bd2c7d62923f8.png)
Stay in sync
Access your documents, photos, music, apps, contacts, and calendars across all your devices with iCloud.
To explore the Mac Pro Essentials guide, click Table of Contents at the top of the page, or enter a word or phrase in the search field.
If you need more help, visit the Mac Pro Support website.
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