The eject power button on a Mac can be found on the upper right corner of the keyboard. This button serves multiple functions depending on the model of your MacBook.
For MacBook Air and MacBook Pro models released before 2016, the power button also doubles as the eject button for optical discs. This means that if you have a CD or DVD in the optical drive, pressing the power button will eject it.
However, starting from 2016, Apple removed the optical drive from their MacBook lineup, so the power button no longer serves as an eject button for physical discs. Instead, it is solely used for powering on and off the device, as well as putting it to sleep and waking it up.
The power button on newer MacBook models also includes a power icon, which is a circle with a vertical line in the center. This icon is used to indicate the power state of the MacBook. When the MacBook is powered on, the power icon will be filled in black. When the MacBook is in sleep mode, the power icon will be outlined in black. And when the MacBook is powered off, the power icon will not be visible.
It’s worth noting that the power button on MacBooks with Touch ID, such as the MacBook Pro with Touch Bar, also includes the Touch ID sensor. This allows you to use your fingerprint to authenticate and unlock your MacBook, as well as make secure purchases with Apple Pay.
In my personal experience, I have used both older MacBook models with the power/eject button combo and newer models with Touch ID. The placement of the power button in the upper right corner of the keyboard is convenient and easy to access. It’s a simple but essential feature that allows you to control the power functions of your MacBook with ease.