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1-TB* 750-GB* 640-GB* 500-GB* 320-GB* 250-GB*
Logical blocks
1,953,504,
479
1,465,128,3
59
1,250,242,8
67
976,752,24
0
625,121.43
3
488,376,12
0
Disk rotational speed
5200 rpm 5200 rpm 7200 and
5400 rpm
7200 rpm 7200 rpm 7200 rpm
Operating temperature 5°C to 55°C (41°F to 131°F)
*1 GB = 1 billion bytes when referring to hard drive storage capacity. Actual accessible capacity is less. Actual drive
specifications may differ slightly.
NOTE: Certain restrictions and exclusions apply. Contact technical support for details.
Blu-ray ROM with LightScribe DVD±RW Super Multi
Double-Layer Drive specifications
Applicable disc Read: Write:
BD-ROM, BD-ROM-DL, BD-R, BD-R-DL,
BD-RE, BD-RE-DL, DVD-ROM, DVD+R,
DVD+R-DL, DVD+RW, DVD-R, DVD-R-DL,
DVD-RW, DVD-RAM (Ver.2), CD-DA,
CD-ROM (mode 1 and mode 2), CD-
ROM XA (mode 2, form 1 and form 2),
Photo CD (single and multiple sessions),
CD Extra, CD-R, CD-RW, and CD-TEXT
DVD-RAM (Ver.2), DVD+R, DVD-R, CD-
R, and CD-ROM
Access time BD DVD
Random < 230 ms < 180 ms
Cache buffer
4.5 MB
Data transfer rate
2X BD-RAM 9 MB/sec
8X DVD 2,400 KB/sec
16X CD-R 2,400 KB/sec
16X CD-RW 2,400 KB/sec
96 Chapter 6 Specifications