HP Compaq nx8220 Maintenance And Service Manual page 8

Product Description
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Support for the following optical drives:
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Connectors:
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1–4
DVD-ROM drive
DVD+RW/R and CD-RW Combo Drive
DVD/CD-RW Combo Drive
Infrared (full-featured models only)
Audio-out (headphone)
Audio-in (microphone)
Universal Serial Bus (USB) v. 2.0 (3 ports on full-featured
notebook models, 2 ports on defeatured notebook models)
Serial port (full-featured models only)
Power
External monitor
RJ-45 (network)
RJ-11 (modem)
S-Video-out (full-featured models only)
IEEE 1394
PC Card
Smart card
SD Card (full-featured models only)
Parallel port (full-featured models only)
Primary battery
Travel battery
Docking connector (full-featured models only)
Maintenance and Service Guide