HGST A7K1000 750GB 0A35771 Leaflet

Interface

3 Gb/s SATA

Capacity 

1

1 TB / 750 GB / 500 GB 

Recording zones

30

Data heads (physical)

10 / 8 / 6

Data disks

5 / 4 / 3

Max areal density (Gbits/sq. in.)

148

Performance
Data buffer (MB) 

3

32

Rotational speed (RPM)

7200

Latency average (ms)

4.17

Media transfer rate (Mbits/sec, max)

1070  

Interface transfer rate (MB/sec, max)

300

Sustained transfer rate (MB/sec)

85 - 42 (zone 0-29)

Seek time (read, typical, ms) 

4

8.2

Error rate (non-recoverable, bits read)

1 in 10

15

Start/stops (at 40˚ C)

50,000

Availability 

2

 (days/week)

24 x 7

Targeted MTBF 

2 

(hours)

1,200,000

Idle (Bels)

2.9

Power
Requirement

+5 VDC (+ -5%), +12 VDC (+ 20% - 8%)

Startup current (max. A)

2.0 (+ 12V) & 1.2 (+ 5V) 

Idle (W)

9.0 / 8.1 / 7.3

Power consump. efficiency index (W/GB)

0.009 / 0.0108 / 0.0146

Physical size
z-height (mm, max)

26.1

Dimensions (width x depth, mm)

101.6 x 147

Weight (g, max)

700

Environmental (operating)
Ambient temperature

5

o

 to 60

o 

C

Shock (half-sine wave, G/2ms)

70

Vibration, random (G RMS 5 to 500 Hz)

0.67, all axes

Ambient temperature

-40

o

 to 70

o 

C

Shock (half-sine wave, G/1ms)

300

Vibration, random (G RMS 2 to 200 Hz)

1.04, all axes

1  One GB is equal to one billion bytes and one TB equals 1,000 GB (one trillion bytes); 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 are not intended to predict an individual drive’s reliability. MTBF does not constitute a warranty.

3  Portion of buffer capacity used for firmware

4  Excludes command overhead

Ultrastar A7K1000 Specifications

How to read the Ultrastar model number
HUA721010KLA330 = 1.0 TB, 3 Gb/s SATA
H  = Hitachi
U  = Ultrastar
A  = ATA
72=  7200 RPM
10 = Full capacity — 1.0 TB
10 = Capacity this model 10 =1.0 TB  
    (75 = 750 GB, 50 = 500 GB)
K  = Generation code
L  = 26.1mm z-height
A3 = Interface, 3 Gb/s SATA
0  = Reserved
0  = Reserved

Information and Technical Support
www.hitachigst.com (Main Web site)
www.hitachigst.com/partners (Reseller Web site

)

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

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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.

© 2007 Hitachi Global Storage Technologies

Hitachi Global Storage Technologies
3403 Yerba Buena Road
San Jose, CA 95135 USA

Produced in the United States 4/07. All rights reserved.

Ultrastar™ and Deskstar™ are trademarks of Hitachi Global 
Storage Technologies.

Hitachi quality and service

Hitachi’s Ultrastar A7K1000 extends the 
company’s long-standing tradition of perform- 
ance and capacity leadership. The proven drive 
design enables high reliability and availability to 
customer data. Ultrastar quality, performance, 
and world class technical support and service 
provides customers with a lower total cost of 
ownership over previous generations.

Hitachi drives are backed by an array of technical 
support and services, which may include 
customer and integration assistance. Hitachi  
is dedicated to providing a breadth of hard disk 
drive solutions to satisfy all of today’s demanding 
computing needs.