Seagate MOMENTUS 20GB ATA100 ST92811A Prospecto

Harness the power of experience, commitment and innovation 
from the industry’s only independent supplier of notebook drives

© 2003 Seagate Technology LLC. All rights reserved. Printed in USA. Seagate, Seagate Technology and the Seagate logo are registered trademarks or trademarks of Seagate
Technology LLC. Momentus, QuietStep, SeaTools, SoftSonic and 3D Defense System are trademarks of Seagate Technology LLC. Other product names are registered trademarks
or trademarks of their owners. Seagate reserves the right to change, without notice, product offerings or specifications. (DS-322) Publication Number: 1561-003, September 2003

AMERICAS

Seagate Technology LLC  920 Disc Drive, Scotts Valley, California 95066, United States, 831-438-6550

ASIA/PACIFIC

Seagate Technology International Ltd. 151 Lorong Chuan, New Tech Park #06-01, Singapore 556741, 65-6488-7200

EUROPE, MIDDLE EAST AND AFRICA

Seagate Technology SA  62 bis, avenue André Morizet, 92643 Boulogne-Billancourt Cedex, France, 33 1-41 86 10 00

DRIVE DEFENSE

• QuietStep ramp load technology provides additional 

protection against shock while delivering whisper-quiet
load/unload acoustics.

• G-Force Protection guards the drive against nonoperat-

ing shock and prevents damage to the motor, heads,
head-arm, clamp and discs during shipping, handling
and daily operation.

DATA DEFENSE

• ECC (error-correction code) performs fast on-the-fly

data validation and error checking for reliable data 
storage and retrieval.

• Safe Sparing ensures data is not compromised by

reserving spare sectors on a drive and substituting
them if defects are detected in other sectors.

• CBDS (continuous background defect scanning) 

proactively identifies and eliminates defects.

DIAGNOSTIC DEFENSE

• SeaTools

™

Suite diagnostic software is designed to

reduce drive returns, decrease drive repair costs 
and protect data.

• Web-based tools enable users to identify and solve

common system-related issues.

• Enhanced S.M.A.R.T. (Self-Monitoring, Analysis and

Reporting Technology) predicts and prevents problems
transparently before they affect the end user.

• NDST (Enhanced Drive Self-Test) reduces 

diagnostic time.

• Certified, experienced support staff

• Rated “Above Average to Excellent” by 95 percent 

of our customers

• Support lines with the shortest wait times in 

the industry

• Individually archived case histories for quick reference

• Web-based Q&A forum and autoreply e-mail

• Seagate Design Service Centers (DSC) help companies

transform innovative ideas into viable products.

Model Number

Interface (Mbytes/sec)

Transfer Rate

Maximum Internal (Mbytes/sec)

Maximum External (Mbytes/sec)

Sustained Transfer Rate (Mbytes/sec)

Cache, Multisegmented (Mbytes)

Average Seek (msec)

Average Latency (msec)

Spindle Speed (RPM)

Discs/Heads

Bytes per Sector

Logical CHS

Recording Method

Head-Rest Method

3D Defense System

™

Nonrecoverable Read Errors per Bits Read

+5 VDC ±5% (amps max)

Power Management (watts) Seek

Read/Write

Low Power Idle/Standby

Temperature, Operating (°C) 

Temperature, Nonoperating (°C)

Shock, Operating: 2 msec (Gs) 

Shock, Nonoperating: 1 and 2 msec (Gs) 

Acoustics

Idle (bels—sound power) 

Quiet Seek (bels—sound power)

Performance Seek (bels—sound power)

Height (in/mm)

Width (in/mm)

Depth (in/mm)

Weight (lb/g)

1

Capacity calculated as 1 Gbyte =  10

9

bytes

ST94011A, ST94811A

Ultra ATA/100

48.25

100

34.5

2, 8

12.0

5.6

5,400

1/2

512

16,383/16/63

RLL 0,11

QuietStep ramp load

Yes

1 per 10

14

bits read

1.2

2.4

2.4

.97/.36

5 to 55

-40 to 65

225

800

2.3

2.5

3.0

.374/9.5

2.75/69.85

3.945/100.2

.218/99

ST92011A, ST92811A

Ultra ATA/100

48.25

100

34.5

2, 8

12.0

5.6

5,400

1/1

512

16,383/16/63

RLL 0,11

QuietStep ramp load

Yes

1 per 10

14

bits read

1.2

2.4

2.4

.97/.36

5 to 55

-40 to 65

225

800

2.3

2.5

3.0

.374/9.5

2.75/69.85

3.945/100.2

.218/99