Hard Disk Drives ~ Notebook HDD ~ 500GB Seagate MOMENTUS SATA 7200.4 2.5" [ST9500420ASG] 16MB G...
  500GB Seagate MOMENTUS SATA 7200.4 2.5" [ST9500420ASG] 1...  
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Your Buy (inc. GST) : $116.90
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500GB Seagate MOMENTUS SATA 7200.4 2.5" [ST9500420ASG] 16MB G-FORCE PROTECTION 3YR
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Product Information

The Seagate® Momentus® 7200.4 drive delivers the highest available capacity and performance in a laptop hard drive and draw only .05 percent more power than a 5400-RPM laptop drive.


Key Advantages

  • Highest available notebook
  • 500-GB capacity
  • 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

Best-Fit Applications

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



Specifications 500 GB
Model Number ST9500420ASG
Interface SATA 3.0Gb/s
Cache 16 MBytes
Capacity 500 GB
Areal density (avg) 394 Gbits/inch2
Guaranteed Sectors 976,773,168
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)
Spindle Speed 7,200 rpm
Average latency 4.17 msec
Random read seek time 11.0 msec
Random write seek time 13.0 msec
Annual Failure Rate 0.5
5V start max current 1.0 amps


Warranty Details

3 Year Warranty