Seagate Barracuda ES SATA 3.0Gb/s 500-GB 20pk ST3500630NS?20PK Data Sheet

Product codes
ST3500630NS?20PK
Page of 2
Barracuda ES
Highest-capacity drives for the enterprise
 
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 © 2007 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. Barracuda is either a trademark or registered trademark 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. DS1597.4, January 2007
Seagate Is the Trusted Leader in 
Enterprise Storage
•  750 GB provides 50 percent more capacity 
than competing drives. The SATA line 
utilizes perpendicular recording technology 
to deliver the highest capacity.
•  Industry’s highest 7200-RPM reliability for 
24x7 business-critical applications from 
a trusted source, backed by the Seagate 
5-Year Warranty
• Multi-drive fi rmware features and 
best-in-class rotational vibration (RV) 
tolerance maximize system availability 
and performance in multi-drive 
systems. Seagate proprietary Workload 
Management technology helps systems 
keep drives cool.
Seagate Service Centers—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
•  Rated “Above Average to Excellent” by 
95 percent of our customers
•  Seagate Design Service Centers (DSC) 
help companies transform innovative ideas 
into viable products.
www.seagate.com
1-800-SEAGATE 
(1-800-732-4283)
Specifi cations
750 GB
1
500 GB
1
400 GB
1
320 GB
1
250 GB
1
Model Number
ST3750640NS
ST3500630NS
ST3400620NS
ST3320620NS
ST3250820NS
ST3250620NS
Interface
SATA 3Gb/s
SATA 3Gb/s
SATA 3Gb/s
SATA 3Gb/s
SATA 3Gb/s
External Transfer Rate (Gb/s)
3.0
3.0
3.0
3.0
3.0
Performance
Transfer Rate
   Maximum Internal (Mb/s)
   Maximum Sustained (MB/s)
1030
78
1030
72
1030
72
1030
72
1030
72
Cache, Multisegmented (MB)
16
16
16
16
8, 16
Average Latency (msec)
4.16
4.16
4.16
4.16
4.16
Spindle Speed (RPM)
7200
7200
7200
7200
7200
Seek Time
   Average Read/Write (msec)
   Track-to-Track Read/Write (msec)
8.5/9.5
0.8/1.0
8.5/9.5
0.8/1.0
8.5/9.5
0.8/1.0
8.5/9.5
0.8/1.0
8.5/9.5
0.8/1.0
Confi guration/Organization
Bytes per Sector
512
512
512
512
512
Reliability/Data Integrity
Reliability Rating at Full 24x7 Operation (AFR)
0.73%
0.73%
0.73%
0.73%
0.73%
Nonrecoverable Read Errors per Bits Read
1 sector per 10
14
1 sector per 10
14
1 sector per 10
14
1 sector per 10
14
1 sector per 10
14
Error Control/Correction (ECC)
10 bit
10 bit
10 bit
10 bit
10 bit
Interface Ports
Single
Single
Single
Single
Single
Limited Warranty (years)
5
5
5
5
5
Power Management
Typical (watts)
13.0
13.0
13.0
13.0
13.0
Idle Average (watts)
9.3
9.3
9.3
9.3
9.3
Environmental
Temperature, Operating (°C)
5 to 55
5 to 55
5 to 55
5 to 55
5 to 55
Temperature, Nonoperating (°C)
–40 to 70
–40 to 70
–40 to 70
–40 to 70
–40 to 70
Shock, Operating: 2 msec (Gs)
63
63
63
63
63
Shock, Nonoperating: 1 msec (Gs)
225
225
225
225
225
Acoustics Idle (bels—sound power)
2.7
2.5
2.5
2.5
2.5
Rotational Vibration (Rad/sec
2
)
12.5
12.5
12.5
12.5
12.5
Physical
Height (in/mm)
1.02/26.11
1.02/26.11
1.02/26.11
1.02/26.11
1.02/26.11
Width (in/mm)
4/101.6
4/101.6
4/101.6
4/101.6
4/101.6
Depth (in/mm)
5.78/146.99
5.78/146.99
5.78/146.99
5.78/146.99
5.78/146.99
Weight (lb/kg)
1.58/0.720
1.58/0.720
1.58/0.720
1.58/0.720
1.58/0.720
1
One gigabyte, or GB, equals one billion bytes when referring to hard drive capacity.