Some software for your Seagate or LaCie drive may require a specific driver to enable certain features. Your Mac may display the following message about Legacy System Extensions related to these drivers:
Apple is transitioning from device drivers to Mac system extensions in upcoming macOS versions. Both Toolkit and LaCie RAID Manager have been updated to support the latest extensions required by Apple. Click OK to dismiss the message. The software will prompt you to update the system extension when needed.
