The Power Eject button is not a physical button on a Mac. It's a software function that appears on the screen when you insert a removable media device, such as a CD, DVD, or USB drive.
To eject a device:
- Click on the eject icon that appears next to the device's name in the Finder window.
- Right-click (or Control-click) on the device's name in the Finder window and select Eject.
- Drag the device's icon to the Trash icon.
The Power Eject button is a convenient way to safely remove external devices from your Mac.