Dell Inspiron 14 (M4010, Mid 2010) - Manual (Page 21)

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Using Your Inspiron Laptop
1 Audio out/Headphone connector — Connects to a pair of headphones or to a powered
speaker or sound system.
2 Audio in/Microphone connector — Connects to a microphone or inputs signal for use
with audio programs.
3 USB 2.0 connectors (2) — Connect to USB devices, such as a mouse, keyboard, printer,
external drive, or MP3 player.
4 VGA connector — Connects to a monitor or projector.