HP ProBook 6550b User Manual

DVD ROM Drive specifications
Applicable disc
Read CD-DA, CD+(E)G, CD-MIDI, CD-TEXT, CD-ROM, CD-ROM XA, MIXED MODE
CD, CD-I, CD-I Bridge (Photo-CD, Video CD), Multisession CD (Photo-CD,
CDEXTRA, Portfolio, CD-R, CD-RW), CDR, CD-RW, DVD-ROM (DVD-5,
DVD-9, DVD-10, DVD-18), DVD-R, DVD-RW, DVD+R, DVD+RW, DVD-RAM
Write CD-R and CD-RW
Random access time
DVD < 130 ms
CD < 110 ms
Cache buffer
2 MB
Data transfer rate
CD-R (24X) 3600 KB/s (150 KB/s at 1X CD rate)
CD-RW (24X) 3600 KB/s (150 KB/s at 1X CD rate)
CD-ROM (24X) 3600 KB/s (150 KB/s at 1X CD rate)
DVD (8X) 10,800 KB/s (1,352 KB/s at 1X DVD rate)
DVD ROM Drive specifications
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HP ProBook 6550b Specifications

General

RAM	Up to 8 GB DDR3
Operating System	Windows 7 Professional
Network	Gigabit Ethernet
Storage	Up to 500GB HDD
Display	15.6-inch diagonal LED-backlit HD anti-glare
Graphics	Intel HD Graphics
Weight	2.5 kg (5.5 lbs)
Battery	6-cell or 9-cell Lithium-Ion
Chipset	Mobile Intel HM57 Express
Optical Drive	DVD+/-RW SuperMulti DL
Wireless	802.11a/b/g/n
Audio	Integrated stereo speakers, Integrated microphone
Ports	USB 2.0, VGA, DisplayPort, eSATA, RJ-45, headphone/microphone combo jack
Processor	Intel Core i5 or i7