640GB Momentus ST9640320AS, 5400 RPM, SATA 3Gb/s, 8MB cache, 2.5" HDD
Momentus® 5400 laptop hard drives satisfy your capacity cravings with up to 640GB of pure digital space.
- Leverages Seagate laptop power management technology, delivering the lowest-power 5400-RPM laptop hard drive yet
- QuietStep™ technology enables ultra-quiet load/unload acoustics
- Energy-efficient power for maximum performance
- 8-MB cache enhances performance
- SATA 3Gb/s with Native Command Queuing enables fast data transfers
- Perpendicular recording technology delivers the capacity points you need
- Mainstream laptops
- External storage solutions/boxes
- Industrial applications requiring a smaller form factor
- Up to 640GB holds thousands of songs, photos, video and more
- 5400-RPM for great performance and the lowest power consumption
- 8-MB cache delivers fast performance
- 1000 Gs of nonoperating shock make the drive ideal for notebook PCs and industrial applications
- Utilizes ramp load features that remove the head from the disk during idle periods, improving idle power consumption and adding to the durability of the drive
Model Number | ST9640320AS |
Interface | SATA 3.0Gb/s |
Cache | 8 MBytes |
Capacity | 640 GB |
Areal density (avg) | 394 Gbits/inch2 |
Guaranteed Sectors | 1,250,263,728 |
PHYSICAL | |
Height (max) | 9.5 mm (0.374 inches) |
Width (max) | 69.85 mm (2.75 inches) |
Length (max) | 100.35 mm (3.957 inches) |
Weight (typical) | 100 grams (0.220 pounds) |
PERFORMANCE | |
Spindle Speed | 5,400 rpm |
Average latency | 5.5 msec |
Random read seek time | 11.0 msec |
I/O data transfer rate | 300MB/s |
RELIABILITY | |
Annual Failure Rate | 0.48 |
POWER | |
5V start max current | 1.0 amps |