Jettison automatically ejects external disks from your Mac before
your computer goes to sleep and remounts them when it wakes.
Simplify those last few seconds when you grab your MacBook and run
out the door. Just close the lid and Jettison will automatically
eject your backup drive, iPod, or whatever is connected so you can
safely unplug it. Say goodbye to "disk was not ejected properly"
errors and waking your computer back up because you forgot to eject
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.