Hitachi E7K1000 1TB HDE721010SLA330 Dépliant

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  Intended for use in lower duty cycle environments in the enterprise 
  storage hierarchy, such as RAID and nearline applications. This MTBF 
  target is based on a sample population and is estimated by statistical    
  measurements and acceleration algorithms under nominal operating 
  conditions. MTBF ratings do not predict an individual drive’s reliability   
  and do not constitute a warranty.

3  Portion of buffer capacity used for drive firmware

4  Excludes command overhead

5  Less than 20% performance degradation from 10 to 300 Hz

Specifications

How to read the Deskstar model number
HDE721050SLA330 = 500GB, 32MB buffer
H  = Hitachi
D  = Deskstar
E  = Series prefix
72 = 7200 RPM
10 = Full capacity—1TB
50 = Capacity this model, 50 =500GB  
    (10 = 1TB, 75 = 750GB)
S  = 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 Pacific 
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 7/08. Revised 1/09. 
All rights reserved.

Deskstar™, HiVERT™ and Partners First™ are trademarks of  
Hitachi Global Storage Technologies.

DSDE721008EN-02

Interface

SATA 3Gb/s

Capacity (GB)

1

1TB / 750 / 500

Max. areal density (Gbits/sq. in.)

244

Performance
Data buffer (MB)

3

32

Rotational speed (RPM)

7200

Media transfer rate (Mbits/s, max)

1406

Interface transfer rate (MB/s, max)

300

Seek time (read, typical, ms)

4

8.5

Reliability
Error rate (non-recoverable, bits read)

1 in 10

15

Load/unload cycles (at 40˚

 

C)

300,000

Availability

2 

(hrs/day x days/wk)

24x7

Targeted MTBF

2 

(hrs)

1,200,000

Warranty (yrs)

5

Acoustics
Idle (Bels, typical)                     

2.7
2.4

Requirement

+5 VDC (+/-5%)  

+12 VDC (+/-10%)

Startup current (A, max.)

0.5 (+5V), 2.0 (+12V)

Idle (W)                                     

5.2
4.4

z-height (mm)

26.1

Dimensions (width x depth, mm)

101.6 (+/-0.25) x 147

Weight (typical, g, max.) 

680

Environmental (operating)
Ambient temperature

0

o

 to 60

o 

C

Relative humidity (non-condensing)

8% to 90%

Shock (half-sine wave)

70

Vibration, random (G RMS 5 to 500 Hz)

0.67 (XY)

Rotational vibration, random (rad, s

2

)

5

12.5

Ambient temperature

-40

o

 to 70

o 

C

Relative humidity (non-condensing)

5% to 95%

Shock (half-sine wave, G (2ms)) 

                                    

300
350

Vibration, random (G RMS 5 to 500 Hz)

1.04 (XYZ)