HP ProBook 4420s - Windows Vista Backup and Recovery

Hard drive specifications
500-GB* 320-GB* 250-GB*
Dimensions
Height 9.5 mm 9.5 mm 9.5 mm
Width 70 mm 70 mm 70 mm
Weight 101 g 101 g 101 g
Interface type SATA SATA SATA
Transfer rate 100 MB/sec 100 MB/sec 100 MB/sec
Security ATA security ATA security ATA security
Seek times (typical read, including setting)
Single track 1.0 ms 1.5 ms 2.0 ms
Average 14.0 ms 12.0 ms 12.0 ms
Maximum 22.0 ms 22.0 ms 22.0 ms
Logical blocks 976,773,168 625,142,448 488,397,168
Disc rotational speed 7200 rpm 7200 rpm 7200 rpm
Operating temperature 5°C to 55°C (41°F
to 131°F)
5°C to 55°C (41°F
to 131°F)
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.
132 Chapter 6 Specifications