Hitachi Specifications
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Feature Description
Manufacturer Hitachi
Model HTS541040G9AT00
Interface ATA-6
Capacity 40 GB
Sector size 512 bytes
Recording zones 16
Data heads 2
Disks 2
Maximum areal density 70 Gbits/square inch
Data buffer 8 MB
Rotational speed 5,400 revolutions per minute (rpm)
Latency 5.5 average milliseconds (ms)
Maximum media transfer rate 493 megabits per second (Mbps)
Maximum interface transfer rate (megabytes per second) 100 megabytes per second (MB/sec) Ultra DMA mode-5
16.6 MB/sec PIO mode-4
Seek time
Average (typical) 12 ms
Track to track (typical) 2.5 ms
Full stroke (typical) 22 ms
Load/Unload cycle 600,000
Power
Requirement +5 volts DC (±5%)
Startup (maximum peak) 5.0 watts (W)
Seek (average) 2.5 W
Read (average) 2.0 W
Write (average) 2.0 W
Performance idle (average) 1.85 W
Active idle (average) 1.1 W
Low power idle (average) 0.65 W
Standby (average) 0.2 W
Sleep 0.1 W
Power consumption efficiency 0.011 watts pre GB
Physical
Height 9.5 millimeters (mm)
Width 70 mm
Depth 100 mm
Weight 95 grams
Environmental
Operating temperature 5° to 55° C
Non-operating temperature -40° to 65° C