Check compatibility
The Apple USB SuperDrive is compatible with Mac computers introduced in 2008 or later that don't have a built-in optical drive.
Connect your SuperDrive
To use your SuperDrive, connect it to a USB-A port on your Mac*, then insert a disc. Make sure that the aluminum enclosure of the SuperDrive is facing up.
To connect your SuperDrive to a Thunderbolt 4, Thunderbolt 3, or USB-C port on your Mac, you can use one of these adapters:
Eject a disc
To eject a disc, click Finder in the Dock, then choose File > Eject. Or, if your keyboard has an eject key, press and hold the eject key 
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* If your SuperDrive doesn't respond when connected to an external display or USB hub, connect your SuperDrive to a USB port directly on your Mac.