Seagate Momentus 5400.4 SATA 120GB ST9120817AS-25TPK Hoja De Datos

Model Number

ST9250827AS

ST9200827AS

ST9160827AS

ST9120817AS

Interface

SATA 3Gb/s NCQ
SATA 1.5Gb/s NCQ

SATA 3Gb/s NCQ
SATA 1.5Gb/s NCQ

SATA 3Gb/s NCQ
SATA 1.5Gb/s NCQ

SATA 3Gb/s NCQ
SATA 1.5Gb/s NCQ

Transfer Rate (MB/s)
   Sustained Internal
   Maximum External

58
300

58
300

58
300

58
300

Cache, Multisegmented (MB)

8

8

8

8

Average Seek (ms)

<12

<12

<12

<12

Average Latency (ms)

5.6

5.6

5.6

5.6

Spindle Speed (RPM)

5400

5400

5400

5400

Disks/Heads

2/4

2/4

2/3

1/2

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

Recording Method

Perpendicular

Perpendicular

Perpendicular

Perpendicular

Head-Rest Method

QuietStep™  
Ramp Load

QuietStep 
Ramp Load

QuietStep  
Ramp Load

QuietStep  
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

Startup Current 5V (amps max)

1.0

1.0

1.0

1.0

Power Management (W)
   Seek Avg
   Read/Write Avg
   Idle/Standby Avg

2.0
2.0/1.6
0.6/0.2

2.0
2.0/1.6
0.6/0.2

2.0
2.0/1.6
0.6/0.2

2.0
2.0/1.6
0.6/0.2

Temperature (°C)
   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

325
900

325
900

325
900

325
900

Acoustics (bels—sound power)
   Idle 
   Performance Seek

2.4
2.6

2.4
2.6

2.4
2.6

2.4
2.6

Height (in/mm)

0.374/9.5

0.374/9.5

0.374/9.5

0.374/9.5

Width (in/mm)

2.75/69.85

2.75/69.85

2.75/69.85

2.75/69.85

Depth (in/mm)

3.957/100.5

3.957/100.5

3.957/100.5

3.957/100.5

Weight (lb/g)

0.225/102

0.225/102

0.225/102

0.225/102

 

 

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Copyright © 2008 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, 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. DS1643.2-0812US, December 2008

1

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

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