How to identify the DFU port on Mac

Find out how to find the device firmware update port on your Mac.

For certain tasks, such as reviving or restoring firmware or installing macOS on an external storage device, you need to know the location of your computer's DFU (device firmware update) port. Only a Mac with Apple silicon or Mac with the Apple T2 Security Chip has this DFU port, which looks identical to other ports that accept a type USB-C connector.

DFU port locations

With some exceptions, the DFU port is the type USB-C port furthest to the left or furthest to the right when you’re facing the ports. Some examples are pictured below the table.

Mac

DFU port location

MacBook Pro and MacBook Air

models with Apple silicon

The USB-C port on the far left when you’re facing the left side of the Mac

MacBook Pro and MacBook Air

models with T2 chip

The USB-C port on the far right when you’re facing the left side of the Mac

iMac

The USB-C port on the far right when you’re facing the back of the Mac

Mac mini

models with Apple silicon

The USB-C port on the far left when you’re facing the back of the Mac

Mac mini

models with T2 chip

The USB-C port on the far right when you’re facing the back of the Mac

Mac Studio

The USB-C port on the far right when you’re facing the back of the Mac

Mac Pro

models with tower enclosure

On the top of the Mac, the USB-C port furthest from the power button

Mac Pro

models with rack enclosure

On the front of the Mac, the USB-C port closest to the power button

DFU port examples

These examples show the DFU port on several Mac models. The location on your Mac model might differ. Consult the table above for details.

The USB-C port on the far left on a model of MacBook Pro:

Left side view of a MacBook Pro

The USB-C port on the far right on a model of MacBook Air:

Left side view of a MacBook Air

The USB-C port on the far right on a model of iMac:

Rear view of an iMac

The USB-C port furthest from the power button on a Mac Pro with tower enclosure:

Top view of a Mac Pro
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