A mount/umount utility for the panel.
The mount plugin allows you to mount devices such as hard disks, CD/DVD-ROM and network filesystems listed in your /etc/fstab and to also
unmount currently mounted filesystems. You can specify custom commands for the mount/unmount operations, eject CDs, run a command after a
device has been mounted (for example, exo-open
to browse it in your file manager), and finally you can quickly see how full a filesystem is, and
whether it's already mounted.
The panel plugin and its menu:
The options dialog where you can specify your desired behaviour: