HP 721953-171 User Manual
Hard drive specifications
1-TB*
750-GB*
500-GB*
320-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
115 g
115 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
1.4 ms
1.5 ms
3 ms
3 ms
Average
10 ms
11 ms
13 ms
13 ms
Maximum
12 ms
14 ms
24 ms
24 ms
Logical blocks
1,938,921,461
1,465,149,168
1,048,576,000
625,141,400
Disc rotational speed
5400 rpm
5400 rpm
7200 rpm or 5400
rpm
rpm
5400 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.
differ slightly.
NOTE:
Certain restrictions and exclusions apply. Contact technical support for details.
118 Chapter 13 Specifications