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1
One GB is equal to one billion bytes and one TB equals 1,000GB (one trillion bytes) when referring to hard drive capacity. Accessible capacity
may be less.
2
Portion of buffer capacity used for drive firmware
3
Intended for low duty cycle, non mission-critical applications in PC, gaming and external storage environments, which may vary from
application to application. Note that customer environments may vary from application to application.
Specifications
How to read the Deskstar model number
HDS722020ALA330 = 2TB, 32MB buffer
H = Hitachi
D = Deskstar
S = Series prefix
72 = 7200 RPM
20 = Full capacity—2TB
20 = Capacity this model, 20 = 2TB
A = Generation code
L = 26.1mm z-height
A3 = Interface, SATA 3Gb/s
3 = 32MB buffer
0 = Reserved
Information and Technical Support
www.hitachigst.com (Main Web site)
www.hitachigst.com/partners (Partner Web site
)
North America
support_usa@hitachigst.com
Toll free: 1 888 426-5214, Direct: 1 507 322-2370
Asia Pacic
support_ap@hitachigst.com / 65 6840 9595
EMEA and UK
support_uk@hitachigst.com / 44 20 7133 0032
Germany
support_uk@hitachigst.com / 49 6929 993601
Program Support
Partners First™ Program
channelpartners@hitachigst.com
Hitachi quality and service
All Hitachi hard drives are designed to the
highest quality standards with field-proven
components. They are backed by Hitachi’s
worldwide technical support and integration
services, enabling customers around the globe
to bring their products to market quickly.
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 specifications provided are sample specifications and do not constitute a warranty. Information is true as of the date of
publication and is subject to change. Actual specifications for unique part numbers may vary. Please visit the Support section of our
website, www.hitachigst.com/support, for additional information on product specifications. Photographs may show design models.
© 2009 Hitachi Global Storage Technologies
Hitachi Global Storage Technologies
3403 Yerba Buena Road
San Jose, CA 95135 USA
Produced in the United States 8/09. Rev. 0/09. All rights reserved.
Deskstar™, HiVERT™ and Partners First™ are trademarks of
Hitachi Global Storage Technologies.
The EcoTrac symbol identifies Hitachi hard drives that deliver on the
principles of lower operating costs, safer product disposal and a more
sustainable environment.
DSDS722009EN-02
Deskstar
™
7K2000
Model(s)
HDS722020ALA330
Conguration
Interface
SATA 3Gb/s
Capacity (TB)
1
2
Sector size (bytes)
512
Max. areal density (Gbits/sq. in.)
285
Performance
Data buffer (MB)
2
32
Rotational speed (RPM)
7200
Media transfer rate (Mbits/s, max)
1621
Interface transfer rate (MB/s, max)
300
Reliability
Error rate (non-recoverable, bits read)
1 in 10
14
Load/unload cycles (at 40˚
C)
300,000
Availability
3
(hrs/day x days/wk)
24x7
Acoustics
Idle (Bels, typical)
2.9
Power
Requirement
+5 VDC (+/-5%) +12 VDC (+/-10%)
Startup current (A, max.)
1.2 (+5V), 2.0 (+12V)
Idle (W)
7.5
Physical size
z-height (mm)
26.1
Dimensions (width x depth, mm)
101.6 (+/-0.25) x 146
Weight (typical, g, max.)
740
Environmental (operating)
Ambient temperature
5
o
to 60
o
C
Relative humidity (non-condensing)
8% to 90%
Shock (half-sine wave, G (2ms))
70
Vibration, random (G RMS 5 to 500 Hz)
0.67 (XYZ)
Environmental (non-operating)
Ambient temperature
-40
o
to 70
o
C
Relative humidity (non-condensing)
5% to 95%
Shock (half-sine wave, G (1ms))
300
Vibration, random (G RMS 2 to 200 Hz)
1.04 (XYZ)