Compaq 300 320 321 420 421 620 and 621 Notebook PC and 420 and 620 Notebook PC - Page 142
Hard drive specifications
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Hard drive specifications 500-GB* 320-GB* 250-GB* 160-GB* Dimensions Height 9.5 mm 9.5 mm 9.5 mm 9.5 mm Width 70 mm 70 mm 70 mm 70 mm Weight 101 g 101 g 101 g 101 g Interface type SATA SATA SATA SATA Transfer rate 100 MB/sec 100 MB/sec 100 MB/sec 100 MB/sec Security ATA security ATA security ATA security ATA security Seek times (typical read, including setting) Single track 3 ms 3 ms 3 ms 3 ms Average 13 ms 13 ms 13 ms 13 ms Maximum 24 ms 24 ms 24 ms 24 ms Logical blocks 1,048,576,000 625,141,400 488,376,280 312,560,640 Disc rotational speed 7200 and 5400 7200 and 5400 7200 and 5400 7200 and 5400 rpm rpm rpm rpm Operating temperature 5°C to 55°C 5°C to 55°C 5°C to 55°C 5°C to 55°C (41°F to 131°F) (41°F to 131°F) (41°F to 131°F) (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. 134 Chapter 6 Specifications