• My OWC
  • Specials
  • Mac Software
  • Memory - RAM, SD...
  • Internal Storage - 2.5/3.5 HDD/SDD
  • External Storage - FireWire / USB / eSATA
  • CD / DVD / Blu-ray
  • Laptop Center - Adapters, Batteries...
  • iPod / iPhone
  • Accessories
  • Audio
  • Video
  • OWC Live Chat Support
  • OWC Newsletter
  • OWC Blog
Description: Ships: Price:
500GB 2.5" Seagate Momentus 7200.4 7200RPM SATA 9.5mm Notebook drive with 16MB Cache - New with 2 Year Seagate Warranty. (ST9500420AS) Same Day $119.99
Add to Your Basket:
 

Seagate

500GB Momentus 7200.4 Hard Disk Drive

2.5-Inch | SATA 3.0Gb/s | 7200RPM | 16MB Cache
A powerful combination of capacity, mobility and durability for both mainstream and high-performance notebook computers.
  • Power efficient so you can work longer between laptop battery charges.
  • Built to withstand demanding use environments where rough handling or high levels of vibration might be encountered.
  • Near silent operation with innovative SoftSonic(TM) fluid-dynamic bearing motors and QuietStep(TM) ramp load technology.
  • 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.

500GB Seagate Momentus 7200.4 Specifications:

Specifications

Form Factor
2.5″ HDD
Interface
SATA 3Gb/s
Capacity1
500GB
Formatted Capacity2
465GiB
Rotational Speed
7,200 RPM
Cache / Data Buffer
16MB
Manufacturer Model Number
ST9500420AS
Format

Physical

Height (max)
9.5mm (0.370″)
Width (max)
69.85mm (2.75″)
Length (max)
100.35mm (3.951″)
Weight (typical)
110g (0.238 lbs.)
Bytes per Sector
512

Reliability3

Contact Start-Stops
>600,000
Annual Failure Rate
0.5%
Nonrecoverable Read Errors
1 per 1014 bits read
Warranty
2 Year Seagate Warranty

Performance

Transfer Rate (Max)
3.0Gb/s
Average Latency
4.17ms

Power

Maximum Start Current, DC
1.0 Amp
Seek Power
1.554 Watts
Idle Mode
0.67 Watts

Environmental (Operating)

Shock
350 G max at 2ms
Ambient Temperature (°F)
32°F to 140°F
Ambient Temperature (°C)
0°C to 60°C
Altitude
-304.8 m to 3,048 m (-1,000 ft to 10,000+ ft)

Environmental (Non-Operating)

Shock
1000 G max at 1ms
Ambient Temperature (°F)
-40°F to 158°F
Ambient Temperature (°C)
-40°C to 70°C
Altitude
-304.8 m to 12,192 m (-1000 ft to 40,000+ ft)

Acoustics

Idle (Typical)
2.3 bels
Seek (Typical)
2.5 bels
  1. 1GB = 1,000,000,000 bytes. Total accessible capacity varies depending upon operating environment (typically 5-10% less). The actual total capacity will depend on your own defined file settings/preferences.
  2. In terms of standard gigabytes, 1GiB ≈ 1.074GB and refers to the actual formatted capacity of shown under Mac OS 10.5 or earlier and Microsoft Windows OS.
  3. Specific application environments such as temperature and duty cycle will affect the overall reliability rates.
Manufacturer provided specifications for Seagate p/n ST9500420AS UPC#: 890552658503
Seagate 500GB Momentus 7200.4 Mfr P/N: ST9500420AS OWC SKU: SEAST9500420AS Internal 2.5" Hard Drive 2 Year Seagate Warranty Ships: Same Day only $119.99 Seagate ST9500420AS In Stock, Click to Buy Now
cap
Load Time: 0.015 seconds, Guest ID: 209326999