Hard Disk Drive / SSD / Storage Device Technical Details
Hard Disk Model | WDC WD400JB |
Disk Family | Caviar SE |
Form Factor | 3.5" |
Capacity | 40 GB (40 x 1 000 000 000 bytes) |
Number Of Disks | 1 |
Number Of Heads | 1 |
Rotational Speed | 7200 RPM |
Rotation Time | 8.33 ms |
Average Rotational Latency | 4.17 ms |
Disk Interface | Ultra-ATA/100 |
Buffer-Host Max. Rate | 100 MB/seconds |
Buffer Size | 8192 KB |
Drive Ready Time (typical) | 7 seconds |
Average Seek Time | 8.9 ms |
Track To Track Seek Time | 2.0 ms |
Full Stroke Seek Time | 21.0 ms |
Width | 101.6 mm (3.98 inch) |
Depth | 147 mm (5.79 inch) |
Height | 26.1 mm (1.02 inch) |
Weight | 600 grams (1.32 pounds) |
Acoustic (Idle) | 3.5 Bel |
Acoustic (Min performance and volume) | 3.7 Bel |
Acoustic (Max performance and volume) | 3.9 Bel |
Required Power For Spinup | 1005 mA |
Power Required (Seek) | 7.0 W |
Power Required (Idle) | 7.0 W |
Power Required (Standby) | 1.0 W |
Manufacturer | Western Digital Corporation |
S.M.A.R.T. Values
Average temperature | Information not yet available |
Average health | Information not yet available |
S.M.A.R.T. statistics and more information for this type of hard disk will be available soon. If you have this type of hard disk, please select Send test report to developer option from the Report menu. |
Disk Drive Rating
Average rating: 4.4 |  [ 1513 vote(s) ] Rate this hard disk: 1 - Lowest  10 - Highest |
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Disclaimer
Device manufacturers may change any parameters without prior notice. There is no warranty that the information listed here is complete and accurate. If you encounter any improper value, please let us know.
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