1-TB, 5400-rpm*
750-GB, 5400-rpm**
500-GB, 5400-rpm**
Length
100.4 mm
100.4 mm
100.4 mm
Width
69.9 mm
69.9 mm
69.9 mm
Weight
110 g
110 g
110 g
Interface type
SATA
SATA
SATA
Transfer rate
Synchronous (maximum)
1.1 GB/sec
1.1 GB/sec
1.1 GB/sec
Security
ATA security
ATA security
ATA security
Seek times (typical read, including setting)
Single track
1.5 ms
1.5 ms
1.5 ms
Average (read/write)
11/13 ms
11/13 ms
11/13 ms
Maximum
22 ms
22 ms
22 ms
Logical blocks
1,953,525,168
1,465,149,168
976,766,112
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.
Hard drive specifications (continued)
500-GB, 5400-rpm**
320-GB, 5400-rpm**
Dimensions
Height
9.5 mm
9.5 mm
Length
100.4 mm
100.4 mm
Width
69.9 mm
69.9 mm
Weight
110 g
110 g
Interface type
SATA
SATA
Transfer rate
Synchronous (maximum)
1.1 GB/sec
1.1 GB/sec
Security
ATA security
ATA security
Seek times (typical read, including setting)
1.5 ms
1.5 ms
1.5 ms
11/13 ms
11/13 ms
11/13 ms
22 ms
22 ms
22 ms
Hard drive specifications (continued) 129
Summary of Contents for 645 G1
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