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Oct
31
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Posted by admin
October 31, 2007 |
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As I patiently await Solid State Drives to Take over the hard drive market, Western Digital announces a nice 320GB 2.5″ hard drive. Not bad - not bad at all. In case you are wondering, that can hold:
- Up to 91,000 digital photos
- Up to 80,000 songs (MP3)
- Up to 8,000 songs (uncompressed CD quality)
- Up to 24 hours of Digital Video (DV)
- Up to 100 hours of DVD quality video
- Up to 38 hours of HD video
And now for the specs:
| Performance Specifications |
 |
Rotational Speed |
5,400 RPM (nominal) |
|
Buffer Size |
8 MB |
|
Average Latency |
4.20 ms (nominal) |
|
| Seek Times |
|
Read Seek Time |
12.0 ms |
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Track-To-Track Seek Time |
2.0 ms (average) |
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| Transfer Rates |
|
Buffer To Host (Serial ATA) |
3 Gb/s (Max) |
|
Transfer Rate (Buffer To Disk) |
850 Mbits/s (Max) |
|
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| Physical Specifications |
|
Formatted Capacity |
320,072 MB |
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Capacity |
320 GB |
|
Interface |
SATA 3 Gb/s |
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| Physical Dimensions |
| English |
|
Height |
0.374 ±0.008 inch |
|
Length |
3.94 ±0.010 inch |
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Width |
2.75 ±0.010 inch |
|
Weight |
0.26 Pounds |
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| Metric |
|
Height |
9.5 ±0.20 mm |
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Length |
100.2 ±0.25 mm |
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Width |
69.85 ±0.25 mm |
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Weight |
0.117 kg |
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| Environmental Specifications |
| Acoustics |
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Idle Mode |
24 dBA (average) |
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Seek Mode 0 |
26 dBA (average) |
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| Temperature (English) |
|
Operating |
41° F to 140° F |
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Non-operating |
-40° F to 149° F |
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| Temperature (Metric) |
|
Operating |
5° C to 60° C |
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Non-operating |
-40° C to 65° C |
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| Humidity |
|
Operating |
8-90% RH non-condensing |
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Non-operating |
5-95% RH non-condensing |
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| Altitude (English) |
|
Operating |
-1,000 feet to 10,000 feet |
|
Non-operating |
-1,000 feet to 40,000 feet |
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| Altitude (Metric) |
|
Operating |
-305M to 3,050M |
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Non-operating |
-305M to 12,200M |
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| Vibration |
|
Operating |
0.00459 g²/Hz (10 to 500 Hz) |
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Non-operating |
0.05102 g²/Hz (10 to 500 Hz) |
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| Electrical Specifications |
| Current Requirements |
|
5 VDC |
|
Read/Write |
500 mA |
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Idle |
400 mA |
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Standby |
50 mA |
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Sleep |
20 mA |
|
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Power Dissipation |
|
Read/Write |
2.50 Watts |
|
Idle |
2.00 Watts |
|
Standby |
0.25 Watts |
|
Sleep |
0.10 Watts |
Source: Western Digital
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