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Hard drive specifications
750-GB* 640-GB* 500-GB* 320-GB* 250-GB*
Dimensions
Height 9.5 mm 9.5 mm 9.5 mm 9.5 and 7.0
mm
7.0 mm
Length 100.2 mm 100.2 mm 100.4 mm 100.4 mm 100.4 mm
Width 69.9 mm 69.9 mm 69.9 mm 69.9 mm 69.9 mm
Weight 110 g 98 g 110 g 110 g 110 g
Interface type SATA (3 GB/
sec)
SATA (3 GB/
sec)
SATA SATA SATA
Transfer rate
Synchronous (maximum) 97 MB/sec 106 MB/sec 1.1 GB/sec 1.1 GB/sec 1.1 GB/sec
Security ATA security ATA security ATA security ATA security ATA security
Seek times (typical read, including setting)
Single track 2.0 ms 1.5 ms 1.5 ms 1.5 ms 1.5 ms
Average (read/write) 12/16 ms 12/13 ms 11/13 ms 11/13 ms 11/13 ms
Maximum 21 ms 24 ms 22 ms 22 ms 22 ms
Logical blocks 1,465,149,16
8
1,250,263,72
8
976,773,168 628,142,448 488,397,168
Disk rotational speed 5400 rpm 5400 rpm 7200 and 5400
rpm
7200 and
5400 rpm
7200 and
5400 rpm
Operating temperature 0°C to 60°C (32°F to 140°F)
*1 GB = 1 billion bytes when referring to hard drive storage capacity. Actual accessible capacity is less.
NOTE: Certain restrictions and exclusions apply. Contact technical support for details.
108 Chapter 6 Specifications