Figure
HP Pavilion 4300, 4200, and 4100, HP nx9005 and nx9000, and Compaq Presario 2100
13.AC adapter jack.
14.Two universal serial bus (USB) ports.
15.LAN port.*
16.
17.Parallel port (LPT1). Use this port for a parallel printer or other parallel device.
18.Serial port (COM1). Use this port for a serial mouse, modem, printer, or other serial device.
19.External monitor port.
20.Kensington lock slot (security connector).
21.Modem port.*
22.PCMCIA card and CardBus slot and button.
23.IEEE 1394 port.*
24.Audio jacks (left to right): external microphone, audio out (headphones).
25.Volume controls.*
26.Audio mute button and audio mute light.*
27.Floppy drive.*
*on certain models
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