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Specifi cations
Model(s) HDS721075KLA330
HDS721010KLA330
Interface Serial ATA 3.0Gb/s
Capacity
1
750GB 1TB
Sector size 512 bytes
Disks/heads 4/8 5/10
Performance
Data buffer
2
32MB
Rotational speed 7200 RPM
Media transfer rate (max) 1070Mb/s
Interface transfer rate (max) 300Mb/s
Latency 4.17ms (average, 7200 RPM)
Seek time
3
8.2ms read (typical), 9.2ms write (typical)
Silent-seek time
3
14ms read (typical), 15ms write (typical)
Reliability
Error rate (non-recoverable) 1 per 1.0 E15 bits transferred
Load/unload cycles (at 40°C) 50,000
Availability
4
(hrs/day x days/wk) 24x7
Warranty 3 years
Power
Supply +5 VDC (+/- 5%), +12 VDC (+10% / -8%)
Start up current (max) 2.0A (+12V), 1.2A (+5V)
Random read/write (average) 11.5W 12.3W
Silent read/write (average) 9.2W 10.2W
Idle (average) 7.6W 8.4W
Unload idle 5.5W 6.1W
Low RPM idle 3.5W 3.7W
Acoustics (A-weighted sound power)
Idle 2.9bels (typical)
Silent seek, Seek 3.0bels (typical), 3.2bels (typical)
Physical
Dimensions H (26.1mm) x W (101.6mm) x D (147mm)
Weight (max) 700g
Environmental
Temperature 5 to 60 °C operating, -40 to 70 °C non-operating
Relative humidity (non-condensing) 8 to 90% operating, 5 to 95% non-operating
Shock (half sine wave) 70 G/2 ms pulse operating, 300 G/1 ms pulse non-operating
Vibration (random) (RMS) 0.67G horizontal, 0.67G vertical operating, 1.04G XYZ non-operating
RoHS
5
compliant yes
1 GB equals one billion bytes when referring to hard drive capacity; accessible capacity may be less.
2 Buffer capacity includes 270 or less KB used for drive fi rmware.
3 Does not include command overhead.
4 Intended for low duty cycle, non-mission critical applications in PC, nearline and consumer electronics environments.
Note that customer environments may vary from application to application.
5 RoHS refers to the European Union Directive 2002/95/EC on the restriction of certain hazardous substances in electrical and electronic equipment.
Specifi c application environments such as temperature and duty cycle will affect the overall reliability rates.
For specifi c application environment reliability rates, please consult Hitachi technical support.
Deskstar
™
7K1000
Hitachi Global Storage Technologies trademarks are intended and authorized for use only in countries and jurisdictions in which Hitachi
Global Storage Technologies has obtained the rights to use, market and advertise the brand. Contact Hitachi Global Storage Technologies
for additional information. Hitachi Global Storage Technologies shall not be liable to third parties for unauthorized use of this document or
unauthorized use of its trademarks.
References in this publication to Hitachi Global Storage Technologies’ products, programs or services do not imply that Hitachi Global
Storage Technologies intends to make these available in all countries in which it operates.
Product specifi cations provided are sample specifi cations and do not constitute a warranty. Information is true as of the date of
publication and is subject to change. Actual specifi cations for unique part numbers may vary. Please visit the Support section of our website,
www.hitachigst.com/support, for additional information on product specifi cations. Photographs may show design models.
© 2007 Hitachi Global Storage Technologies
Hitachi Global Storage Technologies
3403 Yerba Buena Road
San Jose, CA 95135 USA
Produced in the United States 11/07. Revised 7/09.
All rights reserved.
Deskstar
™
is a trademark of Hitachi Global Storage Technologies.
DSDS721007EN-04
Hitachi quality and service
All Hitachi hard drives are designed to the
highest quality standards with fi eld-proven
components. They are backed by Hitachi’s
worldwide technical support and integration
services, enabling global customers to bring
their products to market quickly.
Information and Technical Support
www.hitachigst.com (Main Web site)
www.hitachigst.com/partners (Reseller Web site)
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support_usa@hitachigst.com
Toll free: 1 888 426-5214
Direct: 1 507 322-2370
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support_ap@hitachigst.com / 65 6840 9595
EMEA and UK
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Germany
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