Details
Hard Disk Model |
WDC WD4000AAJS |
Disk Family |
Caviar SE |
Form Factor |
3.5" |
Capacity |
400 GB (400 x 1 000 000 000 bytes) |
Number Of Disks |
2 |
Number Of Heads |
4 |
Rotational Speed |
7200 RPM |
Rotation Time |
8.33 ms |
Average Rotational Latency |
4.17 ms |
Disk Interface |
Serial-ATA/300 |
Buffer-Host Max. Rate |
300 MB/seconds |
Buffer Size |
8192 KB |
Drive Ready Time (typical) |
12 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 (4.00 inch) |
Depth |
147 mm (5.79 inch) |
Height |
25.4 mm (1.00 inch) |
Weight |
600 grams (1.32 pounds) |
Acoustic (Idle) |
2.6 Bel |
Acoustic (Min performance and volume) |
2.8 Bel |
Acoustic (Max performance and volume) |
2.8 Bel |
Required Power For Spinup |
1055 mA |
Power Required (Seek) |
7.8 W |
Power Required (Idle) |
7.2 W |
Power Required (Standby) |
0.97 W |
Manufacturer |
Western Digital Corporation |
Additional Info
Capacity | 400GB |
---|---|
Manufacturer | Western Digital |
Model Number | WD4000AAJS |
SKU | R1794 |
product id | 65548 |