Hitachi Specifications
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Feature Description
Manufacturer Hitachi
Model HTS721010G9SA00
Interface SATA
Capacity 100 GB
Sector size 512 bytes
Recording zones 24
Data heads 4
Disks 2
Maximum areal density 81 Gbits/square inch
Data buffer 8 MB
Rotational speed 7,200 revolutions per minute (rpm)
Latency 4.2 average milliseconds (ms)
Maximum media transfer rate 629 megabits per second (Mbps)
Maximum interface transfer rate (Gigabytes per second) 1.5
Seek time (typical) Average (ms): 10 Read / 11 Write
Track to track (ms): 1 Read / 1.2 Write
Full stroke (ms): 18 Read / 19 Write
Load/Unload cycle 600,000
Power
Requirement +5 volts DC (±5%)
Seek (average) 2.7 W
Read (average) 2.3 W
Write (average) 2.3 W
Active idle (average) 1.2 W
Low power idle (average) 0.9 W
Standby (average) 0.25 W
Sleep 0.25 W
Environmental
Temperature Operating: 5° to 55° C
Non-operating: -40° to 65° C
Shock (half sine wave) Operating: 300 G/sec2 (300 G) 2ms
Non-operating: 1000 G/sec2 (1000 G)/ 1ms
Acoustics (A-weighted sound power (Bels)) Idle (typical): 2.6
Operating (typical): 3.0
Physical
Height 9.5 millimeters (mm)
Width 70 mm
Depth 100 mm
Weight 115 grams