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A powerful combination of capacity, mobility and durability for both mainstream and high-performance notebook computers.
500 GB • 7200 RPM • 2.5-Inch Laptop Hard Drive |
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Key Technical Features
- Highest available notebook performance increases productivity in all environments.
- 500-GB capacity.
- Native Command Queuing (NCQ) with command ordering.
- Green features:
- Leverages Seagate laptop power management technology, delivering the lowest-power 7200-RPM laptop hard drive yet.
- Utilizes ramp load features which remove the head from the disk during idle periods, improving idle power consumption and adding to the durability of the drive.
- Built tough enough to withstand up to 1,000 Gs of non-operating shock and 350 Gs of operating shock to protect drive data.
- State-of-the-art cache and on-the-fly error-correction algorithms.
- Fluid dynamic bearing motor for quiet operation.
- Support for S.M.A.R.T. drive monitoring and reporting.
- Support for Read Multiple and Write Multiple commands.
Best-Fit Applications
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| Model Number |
ST9500420AS |
| Interface |
SATA 3Gb/s |
| Performance |
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| Cache (MB) |
16 |
| Average Latency (ms) |
4.17 |
| Spindle Speed (RPM) |
7200 |
| Configuration/Organization |
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| Logical CHS |
16,383/16/63 |
| Bytes per Sector |
512 |
| Reliability/Data integrity |
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| Recording Method |
16/17 EPRML |
| Head-Rest Method |
QuietStep™ Ramp Load |
| Load/Unload Cycles |
600,000 |
| Nonrecoverable Read Errors per Bits Read |
1 per 1014 bits read |
| Annualized Failure Rate (AFR) |
0.5% |
| Mean Time Between Failures (MTBF, hours) |
500,000 |
| Limited Warranty (years) |
3 |
| Power Management |
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| Startup Current 5v (amps max) |
1.0 |
Power Mgmt (watts)
Seek, Typical
Idle/ Typical |
1.554
0.67 |
| Environmental |
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Temperature (°C)
Operating
Nonoperating |
0 to 60
–40 to 70 |
Shock (G)
Operating: 2 ms
Nonoperating: 1 ms |
350
1000 |
Acoustics (bels—sound power)
Idle
Performance Seek |
2.3
2.5 |
| Physical |
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| Height (in/mm) |
0.370/9.5 |
| Width (in/mm) |
2.75/69.85 |
| Depth (in/mm) |
3.951/100.35 |
| Weight (lb/g) |
0.238/110 |
- One gigabyte, or GB, equals one billion bytes when referring to hard drive capacity.
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The OWC 5-Piece Mini Toolkit includes the right size tools needed to install memory and/or drives into most laptop or desktop/tower computers. |
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Toolkit Contains:
- Nylon Spudger
- Phillips #00
- Straight Blade 1.8mm
- Torx T8
- Torx T6
Need more "spudgers"? Get them now so you're prepared!
Replace or purchase more Nylon pry tools* "spudgers" with the Newer Technology 2 Piece Pry Tool Set for only
$0.99
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Pocket-sized USB bus powered ventilated enclosure for a 2.5" Serial ATA (SATA) I/II hard drive or SSD offering the ultimate combination
of style and value in portable data storage and backup.
Express your digital life with style, convenience, and value!
The 2 oz., pocket-sized OWC Express USB 2.0 Enclosure offers bus powered* personal storage performance in an ultra-portable design. With no AC adapter needed, a USB connecting cable and carrying sleeve included, and compatibility with Macs and PCs, the OWC Express puts your music, photos, and personal data in the fast lane.
*Bus powered via USB port on most computers, provided computer's bus supplies appropriate power needs.
Compact and versatile - No AC Adapter Required!
The OWC Express 2.5" USB 2.0 Enclosure offers maximum mobile data storage/backup potential with a sleek, totally bus powered design. Just add your own 2.5" Serial ATA (SATA) I/II hard drive up to 9.5mm height and take your digital life with you wherever you roam! |
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| Chipset: |
Jmicron 20329 USB 2.0 chipset |
| Interfaces Supported: |
- USB 2.0
/ 1.1 Backwards compatible
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| Port Configuration: |
- USB 2.0 - (1) mini "B" port
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Maximum Data
Transfer Rate: |
- USB 2.0 - 480Mbps (or 60MB/sec)
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| System Requirements: |
USB 2.0:
- Macintosh: Macintosh with USB interface, either built in or via 3rd party card. USB 2.0 drivers required for use with Mac OS X, USB 2.0 not supported on any other Macintosh OS. Mac OS 8.6 and above for use with USB 1.1. USB 2.0 is fully backwards compatible with USB 1.1.
- PC: PC with USB interface and Windows 98 or other OS with USB support. USB 2.0 drivers required for USB 2.0 use. Check with your OS manufacturer for the availabilty of USB 2.0 drivers for your system, and if your USB card supports USB 2.0. USB 2.0 is fully backwards compatible with USB 1.1.
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| Cooling: |
Super quiet fanless ventilation |
| Power Supply: |
Bus Power via USB on all models with USB 2.0 port |
| Drive Requirements: |
Any 2.5" SATA hard drive. |
| External Case Dimensions: |
3.07" (W) x 5.12" (D) x .55" (H) |
Enclosure Weight
(no accessories): |
2.0 ounces (56g) |
| Operating Environment: |
| Temperature: |
Dependant on mechanism installed |
| Relative humidity: |
Dependant on mechanism installed |
| Shock: |
Dependant on mechanism installed |
| Vibration: |
Dependant on mechanism installed |
| Warranty: |
1 Year OWC Warranty
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| Other Views |
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| The OWC Express Kit Includes: |
- OWC Express 2.5" SATA Hard Drive Enclosure
- High Quality Double Shielded USB 2.0/1.1 (mini-B type) connecting cable
- Quick Installation Guide
- Carrying sleeve
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Assembly Instructions:
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