WESTERN DIGITAL WD Mobile Black 250GB HDD 7200rpm sATA serial ATA 16MB cache 2.5inch RoHS compliant internal Bulk
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WESTERN DIGITAL WD Mobile Black 250GB HDD 7200rpm sATA serial ATA 16MB cache 2.5inch RoHS compliant internal Bulk
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Interface
Serial ATA III
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Transfer rate
3GB/s
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Capacity
250GB
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Rotational Speed
7200RPM
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Size
2.5"
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Description
Specifications
Expert Reviews
Mobile Hard Drives
250 GB, 3 Gb/s, 16 MB Cache, 7200 RPM
Designed with top-of-the-line notebook computers in mind, this high performance drive delivers the capacity and speed needed to supercharge a notebook PC without compromising battery life or quiet acoustics. Features like these also make this drive an outstanding option for compact desktops, external hard drives, gaming systems, and blade servers.
Key Features
Desktop-class performance for notebook computers - With 7200 RPM spin speed, 16 MB cache, and capacities up to 320 GB, these drives enable you to have the best of both worlds: the capacity and performance of a desktop PC with the convenience and portability of a notebook.
Massive capacity - WD's 320 GB 2.5-inch drives offer huge capacity for space-hungry operating systems like Windows Vista™, with plenty of room left over for photos, music, and video.
Low power consumption - With technologies like IntelliSeek™, which calculates optimum seek speeds to lower power consumption
[View demo] and SecurePark™, which reduces power by parking the heads during low power idle mode
[View demo], this drive delivers 5400 RPM-equivalent power consumption in a 7200 RPM drive.
Quiet - In a notebook drive, silence is golden. WD’s exclusive WhisperDrive™ combines state-of-the-art seeking algorithms to yield one of the quietest 2.5-inch hard drives on the market.
Reliable and rugged
- WD's ShockGuard™ technology protects the drive mechanics and platter surfaces from shocks during shipping and handling and in daily operation.
- WD's SecurePark 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 shock tolerance.
Tested for compatibility - We perform tests on hundreds of systems and a multitude of platforms in our FIT Lab™ and Mobile Compatibility Lab to give WD customers confidence that our drives will work in their systems.
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Ideal For
Portable digital devices of all kinds, including notebook computers, external storage, and digital media players.
| Performance Specifications |
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Rotational Speed |
7,200 RPM (nominal) |
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Buffer Size |
16 MB |
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Average Latency |
5.50 ms (nominal) |
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| Seek Times |
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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 |
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Buffer To Host (Serial ATA) |
3 Gb/s (Max) |
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| Physical Specifications |
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Formatted Capacity |
250,059 MB |
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Capacity |
250 GB |
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Interface |
SATA 3 Gb/s |
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| Physical Dimensions |
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| English |
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Height |
0.374 Inches |
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Length |
3.94 Inches |
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Width |
2.75 inches |
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Weight |
0.22 Pounds |
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| Metric |
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Height |
9.5 mm |
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Length |
100 mm |
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Width |
69.85 mm |
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Weight |
99 gm |
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| Environmental Specifications |
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| Acoustics |
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Idle Mode |
22 dBA (average) |
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Seek Mode 0 |
25 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 158° 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 70° C |
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| Humidity |
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Operating |
8-90% 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 |
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 |
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| Current Requirements |
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5 VDC |
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Read/Write |
500 mA |
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Idle |
400 mA |
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Standby |
50 mA |
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Sleep |
30 mA |
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Power Dissipation |
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Read/Write |
2.50 Watts |
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Idle |
0.85 Watts |
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Standby |
0.25 Watts |
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Sleep |
0.15 Watts |
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| Hard drive capacity | 250 GB |
| Hard drive interface | Serial ATA |
| Hard drive speed | 7200 RPM |
| Hard drive size | 2.5" |
| Drive device, buffer size | 16 MB |
| Read seek | 12 ms |
| Device type | HDD |
| Average latency | 4.2 ms |
| Track to track seek time (read/write) | 2 ms |
| Bytes per sector | 512 |
| Start/stop cycles | 600000 |
| Power consumption (standby) | 0.25 W |
| Power consumption (PowerSave) | 0.85 W |
| Power consumption (off) | 0.15 W |
| Power consumption (read) | 1.75 W |
| Power consumption (write) | 1.75 W |
| Power consumption (idle) | 0.8 W |
| Operating temperature (T-T) | 5 - 60 °C |
| Storage temperature (T-T) | -40 - 65 °C |
| Operating relative humidity (H-H) | 8 - 90% |
| Storage relative humidity (H-H) | 5 - 95% |
| Operating vibration | 0.00459 G |
| Non-operating vibration | 0.05102 G |
| Operating altitude | -305 - 3050 m |
| Non-operating altitude | -305 - 12200 m |
| Operating shock | 275 G |
| Non-operating shock | 900 G |
| Width | 69.8 mm |
| Height | 9.5 mm |
| Depth | 100 mm |
| Weight | 99 g |
| Hard disk transfer rate | 100 Mbit/s |
| Colour of product | Black |
| Internal | Yes |
| Data transfer rate | 3 Gbit/s |
| Acoustic pressure emissions | 22 dB |
Please note that although care has been taken in the degree of relevancy, pictures are for
display purposes only, and product appearance may differ from what you see. If there are any
discrepancies between the product headline, description and picture, the correct information
will be in the product headline (i.e. computer systems may not come with monitors even if
pictured that way). If anything is unclear, please email support before placing your order.