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Momentus 7200.4 Laptop Hard Drives

The Seagate® Momentus® 7200-RPM family comes with optional G-Force Protection™ technology for hardcore road warriors or even aspiring warriors in need of extra robustness. The G-Force Protection feature provides enhanced data protection against shock that may occur while the drive is operating.

Model ST9500420AS SATA 3Gb/s 500GB

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Best-Fit Applications

  • High-performance and mainstream laptop PCs
  • Small form factor PCs
  • Workstations
  • Industrial applications
  • Non-mission-critical blade servers

 

Seagate® Momentus® hard drives provide the optimum combination of performance, capacity and mobility in a 2.5-inch form factor. They are also a good fit in certain non-PC applications, including external storage, copiers/printers and entry-level blade servers.

Key Advantages

  • Highest available notebook
  • G-Force Protection™ feature
  • Native Command Queuing
  • Green features:
    • Lowest-power 7200-RPM laptop hard drive yet
    • Ramp load features improve idle power consumption
  • State-of-the-art error-correction
  • Fluid dynamic bearing motor
  • Support for S.M.A.R.T. drive monitoring and reporting
  • Support for Read Multiple and Write Multiple commands

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Momentus 7200.4 SATA 3Gb/s 500-GB Hard Drive

ST9500420AS

Specifications
Model Number ST9500420AS
Interface SATA 3Gb/s
Cache 16MB
Capacity 500 GB
Areal density (avg) 394 Gbits/inch2
Guaranteed Sectors 976,773,168
PHYSICAL
Height (max) 9.5 mm (0.370 inches)
Width (max) 69.85 mm (2.750 inches)
Length (max) 100.35 mm (3.951 inches)
Weight (typical) 110 grams (0.238 pounds)
PERFORMANCE
Spindle Speed 7,200 rpm
Average latency 4.17 msec
Random read seek time 11.0 msec
Random write seek time 13.0 msec
RELIABILITY
Annual Failure Rate 0.5
POWER
5V start max current 1.0 amps

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