Samsung NP-N138-DA01RU manual Right View, USB Port, Security Lock Port, DC Jack

Right View

1		2	3
				1	2	3
	(N128)				(N138)

1	USB Port	You can connect USB devices to the USB port such as a keyboard/
		mouse, digital camera, etc.
2	Security Lock Port	You can connect a Kensington lock to the Security Lock Port to
		prevent the computer from being stolen.
3	DC Jack	A jack to connect the AC adapter that supplies power to the
		computer.

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