"As with most tasks in Linux, there are multiple ways to handle
removable devices, but for removable media in particular, KDE's
primary tool is the Plasma Device Notifier Widget.
"It is activated by default on the KDE panel in all 4.x versions
of the desktop environment. From it, you can manage all sorts of
removable media, including hard drives, SD cards, USB flash drives,
CDs, DVDs, cameras, and music players.
"The Device Notifier Widget is located on the KDE panel, but may
be anywhere on the panel, depending on the default setup of your
Linux distribution. It can sit on the panel as an icon, like the
application launcher, or reside within the system tray. To add it
to the system tray:"