Jettison 1.7.1 | macOS | 6 mb
Jettison automatically ejects external disks from your Mac before your computer goes to sleep.

Jettison even makes sure that Time Machine backups and file server volumes are properly shut down before they're removed. Your backups and shared files are safe and sound.
And what if you decide not to leave, and open your MacBook back up? Jettison will check to see if your drives are still connected and will mount them back on the Desktop if they're there.

Compatibility: OS X 10.9 or later 64-bit
Homepage:

http://stclairsoft.com