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SATA Hard Drives
500 GB, Up to 60 Hours HD Video
Reliable
Cool and Quiet
Compatible
Significant design advances in WD's hard drive technology, combine optimized AV performance with best-in-class power consumption and thermally optimized operation enabling unparalleled cost of ownership for manufacturers of digital video recording devices.
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Long-Term Reliability - With a MTBF of 1 million hours, these drives are designed to last in high temperature always-on streaming digital audio/video environments such as PVR/DVR, DVR recorders and surveillance video recorders.
Quiet - Noise levels have been minimized to less than one sone* - virtually below the threshold of human hearing.
Low Power Consumption - WD AV drives deliver best-in-class low power consumption for reduced system power requirements and increased reliability.
Note: 3.3V SATA power is not available in this product
Compatible - Tested for compatibility in a broad range of AV products including set top boxes, DVD recorders, and mainstream surveillance systems.
SilkStream - Optimized for smooth, continuous digital video playback of up to twelve simultaneous HD streams**. SilkStream is compatible with the ATA streaming command set so CE customers can use standard streaming management and error recovery options.
IntelliSeek - Calculates optimum seek speeds to lower power consumption, noise and vibration. View demo >
Ramp Load -  Parks the recording heads off the disk surface during spin up, spin down and when the drive is off. This ensures the recording head never touches the disk surface resulting in improved long term reliability due to less head wear, and improved non-operational shock tolerance.
Preemptive Wear Leveling (PWL) - The drive arm frequently sweeps across the disk to reduce uneven wear on the drive surface common to audio video streaming applications.
* A sone is a subjective unit of loudness as perceived by a person with normal hearing.
** Assumes Host Transfer Block size of 2 MB per stream. |
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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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Acoustics (Sone) |
< 1 |
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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 Host (Serial ATA) |
3 Gb/s (Max) |
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Transfer Rate (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 |
SATA 3 Gb/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 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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