MSI PR601 User Manual page 39

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4. USB Port
The USB 2.0 port allows you to connect USB-interface peripheral devices, such as the mouse,
keyboard, modem, portable hard disk module, printer and more.
5. Optical Device Drive
A slim DVD Super Multi (DVD Dual and DVD RAM) or DVD Combo drive is available in this
notebook, depending on the model you purchased.
The optical device allows you to use the CD/ DVD disc for installing software, accessing data
and playing music/movie on the computer.