Connect your drive to the Mac computer


Once connected open up the Utilities folder.


>Go>Utilities

Open Disk Utility

Select the drive you want to dual format and click on "Partition"

Click on the "+" button to add a partition.

Click on one side and set the following:

Partition Information

Name – Mac or whatever you want

Format – Mac OS Extended (Journaled)

Click the other side and enter in the following:

Name – ExFat whatever you want

Format – ExFAT


Click on Apply

Then Click on Partition

The applying changes updated menu

The drive will show up in two partitions

ExFAT and Mac