HGST Deskstar P7K500 250GB PATA 133 MB/s 20pk 0A35390-20PK Leaflet

1  One GB is equal to one billion bytes when referring to hard drive capacity. Accessible capacity may be less.

2  Portion of buffer capacity used for drive firmware

3  250 GB capacity available with 8 MB only

4  Intended for low duty cycle, non mission-critical applications in PC, nearline, and consumer electronics environments, which may vary from  
    application to application

Specifications

How to read the Deskstar model number
HDP725050GLA360 = 500 GB,16 MB buffer
H  = Hitachi
D  = Deskstar
P  = Series prefix
72 = 7200 RPM
50 = Full capacity — 500 GB
50 = Capacity this model, 50 =500 GB  
    (40 = 400 GB, 32 = 320 GB, 25 = 250 GB)
G  = Generation code
L  = 26.1mm z-height
A3 = Interface, SATA 3Gb/s (AT = PATA)
6  = 16 MB buffer (8 = 8 MB)
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

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.

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.

© 2007 Hitachi Global Storage Technologies

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

Produced in the United States 10/07.  
All rights reserved.

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

®

 is a registered 

mark of the United States Environmental Protection Agency.

DSDP725007EN-01

Interface

PATA-133

SATA 3Gb/s

Capacity (GB) 

1

500 / 400 / 320 / 250



Data heads (physical)

4 / 4 / 3 / 2



Data disks

2 / 2 / 2 / 1



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

185



Performance
Data buffer (MB) 

2

8

16 / 8 

3

Rotational speed (RPM)

7200



Media transfer rate (Mbits/sec, max)

1138  



Interface transfer rate (MB/sec, max)

133

300

Reliability
Error rate (non-recoverable, bits read)

1 in 10

14



Starts/stops (at 40˚

 

C)

50,000

  

Availability 

4 

(hrs/day x days/wk)

24x7



Acoustics
Idle (Bels, typical)

2.6 (2 disk) 2.8 (1 disk)



Requirement

+5 VDC (+/-5%)  

+12 VDC (+/-10%)



Startup current (A, max.)

2.0 (+12V), 1.1 (+5V) 

2.0 (+12V), 1.3 (+5V) 

Idle (W)

4.5 (2 disk) 3.3 (1 disk)

4.8 (2 disk) 3.6 (1 disk)

z-height (mm)

26.1



Dimensions (width x depth, mm)

101.6 (+/-0.25) x 147 



Weight (typical, g, max.)

550



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)



Environmental (non-operating)
Ambient temperature

-40

o

 to 70

o 

C



Relative humidity (non-condensing)

5% to 95%



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

350



Vibration, random (G RMS 5 to 500 Hz)

1.04 (XYZ)

