500-GB, 5400-rpm**
320-GB, 5400-rpm**
Single track
1.5 ms
1.5 ms
Average (read/write)
11/13 ms
11/13 ms
Maximum
22 ms
22 ms
Logical blocks
976,773,168
628,142,448
Disk rotational speed
5400 rpm
Operating temperature
0°C to 60°C (32°F to 140°F)
*1 TB = 1 trillion bytes when referring to hard drive storage capacity. Actual accessible capacity is less.
**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.
130 Chapter 10 Specifications
Summary of Contents for 645 G1
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