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EIDE Hard Drives
320 GB, 100 MB/s, 8 MB Cache, 7200 RPM
Fast
Cool
Quiet
Cool, quiet and fast. WD Caviar SE drives offer superior performance and reliability, making them ideal for business and family desktops.
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Cool, quiet operation, superior performance and industry-leading reliability make these EIDE drives ideal for desktop, business, and consumer electronics storage.
Key Features
Fast - 8 MB cache - Keeps more of your data in high-speed memory for unsurpassed performance in its class. Fast 7200 RPM spindle speed and EIDE (Ultra ATA/100) for burst transfer rates up to 100 MB/s. For even higher performance, consider WD Caviar SE16 SATA 3 Gb/s hard drives.
Cool - Cool operation results in the highest reliability, even in intensely hot environments such as digital video recorders. That's why these, the coolest on the market, are the drives of choice for the world's leading consumer electronics and PC manufacturers.
Quiet - The technology that Tom's Hardware Guide called "very fast and nearly silent" is used throughout this family of drives. Our WhisperDrive technology minimizes noise to levels near the threshold of human hearing. To cut seek noise, SoftSeek technology streamlines read/write seeking algorithms, resulting in more efficient operation.
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Ideal For
High-performance family and business computing. These drives easily handle photo editing and data-intensive multimedia applications. For even higher performance, consider WD Caviar SE16 SATA hard drives.
How this WD hard drive protects your data
- Data Lifeguard is an exclusive set of data protection features, including shock protection, an environmental protection system and real-time embedded error detection and repair. WD's Data Lifeguard technology automatically finds, isolates, and repairs problems that may develop over the life of a hard drive.
- Data Lifeguard Tools are software utilities designed for WD hard drives that work with the embedded Data Lifeguard features to make hard drive installation,diagnostics and repair both simple and worry-free.
- ShockGuard instantaneously protects the hard drive against damage from bumps and vibrations while it is running. This technology enables WD Caviar drives to achieve industry-leading shock specifications.
Important interface information
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This drive requires an EIDE interface
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| Performance Specifications |
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Rotational Speed |
7,200 RPM (nominal) |
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Buffer Size |
8 MB |
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Average Latency |
4.20 ms (nominal) |
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Start/Stop Cycles |
50,000 minimum |
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| Seek Times |
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Read Seek Time |
8.9 ms |
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Write Seek Time |
10.9 ms (average) |
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Track-To-Track Seek Time |
2.0 ms (average) |
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Full Stroke Seek |
21.0 ms (average) |
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| Transfer Rates |
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Buffer To Disk |
972 Mbits/s (Max) |
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| Physical Specifications |
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Formatted Capacity |
500,107 MB |
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Capacity |
500 GB |
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Interface |
EIDE 100 MB/s |
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User Sectors Per Drive |
976,773,168 |
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| Physical Dimensions |
| English |
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Height |
1.028 Inches (Max) |
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Length |
5.787 Inches (Max) |
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Width |
4.00 Inches (+/- 0.010 inch) |
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Weight |
1.39 Pounds |
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| Metric |
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Height |
25.4 mm (Max) |
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Length |
147 mm (Max) |
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Width |
101.6 mm |
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Weight |
0.63 kg |
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| Environmental Specifications |
| Shock |
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Operating Shock (Read) |
65G, 2 ms |
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Non-operating Shock |
350G, 2 ms |
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| Acoustics |
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Idle Mode |
28 dBA (average) |
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Seek Mode 0 |
26 dBA (average) |
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Seek Mode 3 |
29 dBA (average) |
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| Temperature (English) |
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Operating |
32 F to 140 F |
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Non-operating |
-40 F to 149 F |
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| Temperature (Metric) |
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Operating |
-0 C to 60 C |
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Non-operating |
-40 C to 65 C |
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| Humidity |
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Operating |
5-95% RH non-condensing |
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Non-operating |
5-95% RH non-condensing |
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| Altitude (English) |
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Operating |
-1,000 feet to 10,000 feet |
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Non-operating |
-1,000 feet to 40,000 feet |
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| Altitude (Metric) |
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Operating |
-305M to 3,050M |
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Non-operating |
-305M to 12,200M |
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| Vibration |
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Operating |
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Linear |
20-300 Hz, 0.75 G (0 to peak) |
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Random |
7-500 Hz (0.00221 g / Hz) |
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Non-operating |
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Low Frequency |
10-300 Hz, 0.195 inches (double amplitude) |
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High Frequency |
300-500 Hz, 5.0G (0 to peak) |
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| Electrical Specifications |
| Current Requirements |
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12 VDC |
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Read/Write |
460 mA |
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Idle |
450 mA |
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Standby |
6 mA |
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Sleep |
6 mA |
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5 VDC |
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Read/Write |
650 mA |
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Idle |
600 mA |
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Standby |
180 mA |
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Sleep |
180 mA |
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Power Dissipation |
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Read/Write |
8.77 Watts |
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Idle |
8.40 Watts |
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Standby |
0.97 Watts |
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Sleep |
0.97 Watts |
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