Seagate Momentus 7200.5 - 640GB 7200RPM SATA II 3Gb/s 16MB Cache 2.5" 9.5mm Laptop Hard Drive - ST9640420AS

The Seagate ST9640420AS has been Discontinued. Replacement option is the ST1000LM049.
Condition | Refurbished |
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Warranty | 90 Day Warranty |
Availability | Yes - Ships in 1 to 2 Days |
Manufacturer | Seagate Technology |
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Model | ST9640420AS |
Series | Seagate Momentus 7200.5 |
UPC Code | Does Not Apply |
Seagate Momentus 7200.5 Performance Drives
The Seagate Momentus 7200.5 drives offers the best combination of performance, capacity, mobility and durability in a laptop hard drive to meet the demanding requirements of today's notebook multimedia usage and draws only .05 percent more power than a 5400-RPM laptop drive. Able to withstand up to 1000 Gs of shock, this highly reliable 2.5-Inch drive is perfect for notebook or external storage applications. The Seagate Momentus 7200.5 has the highest available notebook performance increases and leveraging Seagate laptop power management technology, delivering the lowest power consumption of any 7200RPM laptop hard drive on the market.
  Key Advantages
- Capacity: The Momentus 7200.5 series comes in a range of capacities, from 160GB to 750GB, allowing users to choose a drive size that best fits their storage needs.
- Speed: With a rotational speed of 7200RPM, the Momentus 7200.5 provides faster read and write speeds than many other laptop hard drives, making it ideal for users who need high performance and fast data access.
- Interface: The Momentus 7200.5 uses a SATA 3.0Gb/s interface for data transfer, which is a standard interface for many modern laptops and desktops.
- Cache: The hard drive features an 8MB cache buffer, which helps improve performance by temporarily storing frequently accessed data.
- Power Consumption: The Momentus 7200.5 is designed to be energy efficient, with a maximum power consumption of 2.5 watts when reading or writing data.
- Shock Resistance: The hard drive is built to withstand shocks and vibrations that can occur when using a laptop on the go, with a shock tolerance of up to 350G.
- Operating System Compatibility: The Momentus 7200.5 is compatible with a wide range of operating systems, including Windows, Mac OS, and Linux.
   Best-Fit Applications
- High Performance Laptops and Notebooks
- Mainstream Laptops and Notebooks
- Small Form Factor Desktops PCs
- Workstations
- Blade Servers
- Industrial Applications
Product Specs
Capacity | 640 GB |
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Spindle Speed | 7200 RPM Fluid Dynamic (FDB) Motor |
Cache Buffer | 16 MB Intelligent Caching |
Advanced Format | No |
Form Factor | 2.5 Inch Internal Hard Drive |
Interface | SATA II 3Gb/sec (Generation 2) |
Interface Speed | 3Gb/sec - Data Transfer Rate (max) Buffer to Host |
Data Transfer Rate | up to 147MB/sec Host to/from Drive (Sustained) |
Interface Connector | SATA (7-Pin Signal and 15-Pin Power Connector) |
Recording Technology | Perpendicular Magnetic Recording (PMR) Technology |
Life Expectancy | 500,000 Hours MTTF (Mean Time To Failures) |
Workload Rating | < 55 TB/yr (Workload Rate Limit) / 600,000 (Load/Unload Cycles) |
Shock Resistance | Operating: 350Gs (2ms) / Non Operating: 1000Gs (1ms) |
Encryption | No |
Rohs Compliant | Yes |
Dimensions | (L x W x H) 100.35mm x 69.85mm x 9.5mm |
Classification | High Performance Drives |
Key Features
- Capacities up to 750GB
- 7200 RPM Rotational Speed Motor
- SATA II 3Gb/s Interface
- Low Power Consumption
- Read Multiple and Write Multiple Command Support
- Whisper Quiet with Fluid Dynamic Bearing (FDB) Motors
- Native Command Queuing (NCQ) Technology
- Full-track Multiple-Sector Transfer Capability
- State-of-the-Art Cache and On-the-Fly Error-Correction Algorithms
- Staggered Spin-up Technology
- NoiseGuards Technology
- SilentSeek Technology
- Perpendicular Magnetic Recording (PMR) Technology
- QuietStep Ramp Load Technology
- Seagate SmartAlign Technology