320GB 2.5" Seagate Momentus 7200.3 7200RPM... (ST9320421AS) at OWC

Description:	Ships:	Price:
320GB 2.5" Seagate Momentus 7200.3 7200RPM SATA Notebook drive with 16MB Cache - New with 3 Year Seagate Warranty. (SEAST9320421AS)	Same Day	$79.99

Momentus 7200.3
Industry-leading 7200-RPM performance
meets the industry’s lowest power consumption levels.

320 GB • 7200 RPM • 2.5-Inch Laptop

Key Advantages

Highest available notebook performance increases productivity in all environments.
Developed with proven Seagate® 7200-RPM laptop technology
SATA 3Gb/s NCQ interface.
16-MB cache on every capacity
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
QuietStep™ technology enables ultra-quiet load/unload acoustics
Perpendicular recording technology
3-year limited warranty

Best-Fit Applications

Specifications	320 GB¹
Model Number	ST9320421AS
Interface	SATA 3Gb/s
Performance
Transfer Rate (MB/sec) Sustained Internal Maximum External	80 300
Cache (MB)	16
Average Latency (ms)	4.17
Spindle Speed (RPM)	7200
Configuration/Organization
Discs/Heads	2/4
Bytes per Sector	512
Reliability/Data integrity
Head-Rest Method	QuietStep™ Ramp Load
Load/Unload Cycles	>600,000
Nonrecoverable Read Errors per Bits Read	1 per 10¹⁴bits read
Annualized Failure Rate (AFR)	0.48%
Mean Time Between Failures (MTBF, hours)	500,000
Limited Warranty (years)	3
Power Management
Startup Current 5v (amps max)	1.0
Power Mgmt (watts) Seek Read/Write Avg. Idle/Standby	2.3 2.1 0.75/0.21
Environmental
Temperature (°C) Operating Nonoperating	0 to 60 –40 to 70
Shock (G) Operating: 2 ms Nonoperating: 1 ms	350 1000
Acoustics (bels—sound power) Idle Performance Seek	2.3 2.5
Physical
Height (in/mm)	.374/9.5
Width (in/mm)	2.75/69.85
Depth (in/mm)	3.945/100.2
Weight (lb/g)	0.225/102

One gigabyte, or GB, equals one billion bytes when referring to hard drive capacity.

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