Seagate DiamondMax 21 Ultra ATA 250-GB Hard Drive STM3250620A Fiche De Données
Codes de produits
STM3250620A
DiamondMax 20 and
DiamondMax 21
DiamondMax 21
Reliability, performance and leading mainstream features
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 © 2006 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. DiamondMax, Maxtor and the Maxtor logo are either trademarks or registered trademarks of Seagate
Technology LLC or one of its affi liated companies in the United States and/or other countries. All other trademarks or registered trademarks are the property of
their respective owners. One gigabyte, or GB, equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating
environment and formatting. Seagate reserves the right to change, without notice, product offerings or specifi cations. Publication Number: DS1602.2, December 2006
Seagate Service Centers—
Worldwide Support
Worldwide Support
• Presales and technical support at
1-800-SEAGATE
• Free technical support for the life of
the product
• Expert email support and complete
historical web content available online
• Certifi ed, experienced support staff
www.seagate.com
1-800-SEAGATE
(1-800-732-4283)
1-800-SEAGATE
(1-800-732-4283)
Specifi cations
320 GB
1
250 GB
1
160 GB
1
80 GB
1
40 GB
1
Product
DiamondMax 21
DiamondMax 21
DiamondMax 20
DiamondMax 20
DiamondMax 20
Model Number
STM3320820AS
STM3320820A
STM3320820A
STM3250820AS
STM3250820A
STM3250820A
STM3160211AS
STM3160212A
STM3160212A
STM380211AS
STM380211A
STM380211A
STM340211AS
STM3402111A
STM3402111A
Performance
Transfer Rate (MB/s)
SATA 3Gb/s
ATA/100
SATA 3Gb/s
ATA/100
300
100
100
300
100
100
300
100
100
300
100
100
300
100
100
Cache, Multisegmented (MB)
8
8
2
2
2
Average Latency (msec)
4.17
4.17
4.17
4.17
4.17
Spin Speed
7200
7200
7200
7200
7200
Confi guration/Organization
Bytes per Sector
512
512
512
512
512
Reliability/Data Integrity
Contact Start-Stops
50,000
50,000
50,000
50,000
50,000
Nonrecoverable Read Errors per Bits Read
1 per 10
14
1 per 10
14
1 per 10
14
1 per 10
14
1 per 10
14
Annualized Failure Rate (AFR)
0.34%
0.34%
0.34%
0.34%
0.34%
Limited Warranty
3 years
3 years
3 years
3 years
3 years
Power Management
+12V Peak (A ±10%)
2.8
2.8
2.8
2.8
2.8
Seek, Average (W)
12.4
12.4
12.4
12.4
12.4
Operating, Average (W)
12.8
12.8
12.8
12.8
12.8
Idle, Average (W)
7.2
7.2
7.2
7.2
7.2
Environmental
Temperature
Operating (°C)
Nonoperating (ºC)
Operating (°C)
Nonoperating (ºC)
0 to 60
–40 to 70
–40 to 70
0 to 60
–40 to 70
–40 to 70
0 to 60
–40 to 70
–40 to 70
0 to 60
–40 to 70
–40 to 70
0 to 60
–40 to 70
–40 to 70
Shock
Operating, 2 ms (G)
Nonoperating, 2 ms (G)
Operating, 2 ms (G)
Nonoperating, 2 ms (G)
63
350
350
63
350
350
63
350
350
63
350
350
63
350
350
Acoustics (bels—sound power)
Idle
Seek
Idle
Seek
2.7
2.9
2.9
2.7
2.9
2.9
2.7
2.9
2.9
2.7
2.9
2.9
2.7
2.9
2.9
Physical
Height (in/mm)
0.79/20.99
0.79/20.99
0.79/20.99
0.79/20.99
0.79/20.99
Width (in/mm)
4.00/101.6
4.00/101.6
4.00/101.6
4.00/101.6
4.00/101.6
Depth (in/mm)
5.87/146.99
5.87/146.99
5.87/146.99
5.87/146.99
5.87/146.99
Weight (lb/g)
1.28/580
1.28/580
1.28/580
1.28/580
1.28/580
*One gigabyte, or GB, equals one billion bytes when referring to hard drives capacity.