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H i t a c h i D e s k s t a r
®
E 7 K 5 0 0
Product Deskstar E7K500
Model numbers HDS725050KLA360
HDS725050KLA361
Specifications
Configuration
Interface SATA 3.0Gb/s
Capacity (GB)
1
500; 400
Disks / heads 5 / 10
Performance
Data buffer
2
(MB) 16
Rotational speed (RPM) 7,200
Media transfer rate (max. Mbits/sec) 817
Interface transfer rate (max. MB/sec) 300
Sustained data rate (MB/sec) 64.8 - 31 (zone 0 - 29)
Seek time, average (read, typical (ms))
3
8.5
Reliability
Error rate (non-recoverable) 1 in 10E14
Start/stops (at 40° C) 50,000
Availability
4
24x7
MTBF
4
1,000,000 hours
Acoustic
Idle (Bels) 3.1
Power
Requirement +5 VDC (+/- 5%)
+12 VDC (+10 %/-8%)
Dissipation
Startup current (max. A) 2.0 (+12V) & 1.2 (+5V)
Idle (W) 9.6
Physical Size
Height (mm) 25.4
Width (mm) 101.6
Depth (mm) 146
Weight (max. g) 700
Environmental Characteristics
Operating
Ambient temperature 5° to 55° C
Relative humidity (non-condensing) 8% to 90%
Shock (half sine wave, 2ms) (G) 55
Vibration (random (RMS)) (G) 0.67 for horizontal
0.56 for vertical
Non-operating
Ambient temperature -40° to 65° C
Relative humidity (non-condensing) 5% to 95%
Shock (half sine wave, 2ms) (G) 225
Vibration (random (RMS)) (G) 1.04 (XYZ)
RoHS compliant
5
Yes
1
GB equals one billion bytes when referring to hard drive capacity; accessible capacity may be less.
2
Buffer capacity includes 271 KB used for drive firmware.
3
Includes 0.3ms command overhead.
4
Low duty cycle, non mission-critical applications in PC, nearline and consumer electronics customer environments
are different from application to application. An MTBF measurement is based on a sample population and is estimated
by statistical measurements and acceleration algorithms under nearline / low duty cycle workload. MTBF ratings are
not intended to predict an individual drive’s reliability. MTBF is not a warranty measurement.
5
RoHS refers to the European Union Directive 2002/95/EC on the restriction of certain hazardous substances in
electrical and electronic equipment.
© 2006 Hitachi Global Storage Technologies
Hitachi Global Storage Technologies
3403 Yerba Buena Road
San Jose, CA 95135
Produced in the United States 8/06, rev. 10/06
All rights reserved.
Deskstar® is a trademark of Hitachi Global Storage Technologies.
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.
For more information:
Internet:
> www.hitachigst.com (Main Web site)
> www.hitachigst.com/vpp (Reseller Web site)
Technical Support E-mail:
> support_usa@hitachigst.com (N. America)
> support_ap@hitachigst.com (Asia Pacific)
> support_uk@hitachigst.com (EMEA and UK)
Technical Support Phone Numbers:
> 1 888 426-5214 (N. America)
> 65 6840 9595 (Asia Pacific)
> 44 20 7133 0032 (EMEA and UK)
> 49 6929 993601 (Germany)
How to Read the Deskstar Model Number
Example:
HDS725050KLA360 = 500GB/16MB
H = Hitachi
D = Deskstar
S = Standard (vs T for Two-disk for example)
72 = 7200 RPM
50 = full capacity = 500GB
50 = model capacity = 500GB (unless 1 in last position)
K = generation code
L = height
A3 = SATA 3.0Gb/s
6 = 16MB buffer
0 = 500GB model (1=400GB mode
Specific application environments such as temperature and duty cycle will affect the overall reliability rates. For specific
application environment reliability rates, please consult Hitachi technical support.