Seagate ST9640420AS データシート
Momentus
®
7200.4
Industry-leading 7200-RPM performance meets
extreme green low power consumption levels
Seagate Leadership
Seagate Technology, a leader in storage, is dedicated to
building products that meet the needs of the consumer
and integrator, allowing them to build solutions that are
state of the art, maximizing useful system life.
building products that meet the needs of the consumer
and integrator, allowing them to build solutions that are
state of the art, maximizing useful system life.
Seagate also works hand in hand with major technology
players to develop new platforms and interfaces for
system builders. Unlike many competitors, Seagate
takes a leadership role, as well as learning from our
customers, to develop the future of storage and what it
means to computing.
players to develop new platforms and interfaces for
system builders. Unlike many competitors, Seagate
takes a leadership role, as well as learning from our
customers, to develop the future of storage and what it
means to computing.
As a result, Seagate continually delivers innovations that
are mainstays of storage today:
are mainstays of storage today:
• Products: 7200-RPM desktop and laptop drives,
security drives
• Technologies: Serial ATA, perpendicular recording,
encryption, hybrid drives
• Features: Freefall protection, power management,
enterprise security, green components
Seagate customers can build a storage foundation with
the confidence that they are using products that will
perform today and in the future, enhancing business and
operational continuity.
the confidence that they are using products that will
perform today and in the future, enhancing business and
operational continuity.
G-Force Protection
The G-Force Protection feature provides enhanced data
protection against shock that may occur while the drive
is operating. This feature is designed to decrease the
likelihood of data loss by detecting a freefall event and
unloading the actuator before a shock takes place in falls
of greater than 8 inches (nominal).
protection against shock that may occur while the drive
is operating. This feature is designed to decrease the
likelihood of data loss by detecting a freefall event and
unloading the actuator before a shock takes place in falls
of greater than 8 inches (nominal).
Seagate Global Customer Support
• Get presales and technical support at support.
seagate.com.
• Visit our knowledge base for answers to common
support questions.
• Find documentation for current and legacy drives.
• Utilize our online troubleshooting and diagnostic tools.
• Download DiscWizard
• Utilize our online troubleshooting and diagnostic tools.
• Download DiscWizard
™
to help migrate data from an
older drive.
AMERICAS
Seagate Technology LLC 920 Disc Drive, Scotts Valley, California 95066, United States, 831-438-6550
ASIA/PACIFIC
Seagate Technology International Ltd. 7000 Ang Mo Kio Avenue 5, Singapore 569877, 65-6485-3888
EUROPE, MIDDLE EAST AND AFRICA
Seagate Technology SAS 130–136, rue de Silly, 92773, Boulogne-Billancourt Cedex, France 33 1-4186 10 00
Copyright © 2009 Seagate Technology LLC. All rights reserved. Printed in USA. Seagate, Seagate Technology and the Wave logo are registered trademarks of Seagate Technology LLC in the United States and/or
other countries. DiscWizard, G-Force Protection, Momentus and QuietStep are either trademarks or registered trademarks of Seagate Technology LLC or one of its affiliated companies in the United States and/
or other countries. All other trademarks or registered trademarks are the property of their respective owners. When referring to hard drive capacity, one gigabyte, or GB, equals one billion bytes and one terabyte,
or TB, equals one trillion bytes. Your computer’s operating system may use a different standard of measurement and report a lower capacity. In addition, some of the listed capacity is used for formatting and other
functions, and thus will not be available for data storage. Seagate reserves the right to change, without notice, product offerings or specifications. DS1667.2-0902US, February 2009
other countries. DiscWizard, G-Force Protection, Momentus and QuietStep are either trademarks or registered trademarks of Seagate Technology LLC or one of its affiliated companies in the United States and/
or other countries. All other trademarks or registered trademarks are the property of their respective owners. When referring to hard drive capacity, one gigabyte, or GB, equals one billion bytes and one terabyte,
or TB, equals one trillion bytes. Your computer’s operating system may use a different standard of measurement and report a lower capacity. In addition, some of the listed capacity is used for formatting and other
functions, and thus will not be available for data storage. Seagate reserves the right to change, without notice, product offerings or specifications. DS1667.2-0902US, February 2009
Specifications
500 GB
1
320 GB
1
250 GB
1
160 GB
1
Model Number
ST9500420AS
ST9500420ASG
ST9500420ASG
ST9320423AS
ST9320423ASG
ST9320423ASG
ST9250410AS
ST9250410ASG
ST9250410ASG
ST9160412AS
ST9160412ASG
ST9160412ASG
Interface Options
SATA 3Gb/s
NCQ
NCQ
SATA 3Gb/s
NCQ
NCQ
SATA 3Gb/s
NCQ
NCQ
SATA 3Gb/s
NCQ
NCQ
Performance
Cache (MB)
16
16
16
16
Spindle Speed (RPM)
7200
7200
7200
7200
Configuration/Organization
Bytes per Sector
512
512
512
512
Logical CHS
16,383/16/63
16,383/16/63
16,383/16/63
16,383/16/63
Reliability/Data Integrity
Recording Method
16/17 EPRML
16/17 EPRML
16/17 EPRML
16/17 EPRML
Head-Rest Method
QuietStep
™
Ramp Load
QuietStep
™
Ramp Load
QuietStep
Ramp Load
Ramp Load
QuietStep
Ramp Load
Ramp Load
Load/Unload Cycles
600,000
600,000
600,000
600,000
Nonrecoverable Read Errors per Bits Read
1 per 10E14
1 per 10E14
1 per 10E14
1 per 10E14
Power Management
Power (W)
Seek, Typical
Idle, Typical
Seek, Typical
Idle, Typical
1.554
0.67
1.554
0.67
1.554
0.67
1.554
0.67
Environmental
Temperature (°C)
Operating
Nonoperating
Operating
Nonoperating
0 to 60
–40 to 70
0 to 60
–40 to 70
0 to 60
–40 to 70
0 to 60
–40 to 70
Shock (Gs)
Operating: 2 ms
Nonoperating: 1 ms
Operating: 2 ms
Nonoperating: 1 ms
350
1000
350
1000
350
1000
350
1000
Acoustics (bels–sound power)
Idle, Typical
Seek, Typical
Idle, Typical
Seek, Typical
2.3
2.5
2.3
2.5
2.3
2.5
2.3
2.5
Physical
Height (in/mm)
0.370/9.5
0.370/9.5
0.370/9.5
0.370/9.5
Width (in/mm)
2.75/69.85
2.75/69.85
2.75/69.85
2.75/69.85
Depth (in/mm)
3.951/100.35
3.951/100.35
3.951/100.35
3.951/100.35
Weight (lb/g)
0.238/110
0.238/110
0.227/105
0.227/105
1 One gigabyte, or GB, equals one billion bytes when referring to hard drive capacity.
www.seagate.com
1-800-SEAGATE (1-800-732-4283)
1-800-SEAGATE (1-800-732-4283)