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1
GB equals one billion bytes when referring to hard drive capacity; accessible capacity may be less.
2
Buffer capacity includes 270 or less KB used for drive firmware.
3
Includes command overhead.
4
RoHS refers to the European Union Directive 2002/95/EC on the restriction of certain hazardous substances in
electrical and electronic equipment. Visit www.hitachigst.com/rohs for compliance information.
© 2005 Hitachi Global Storage Technologies
Hitachi Global Storage Technologies
5600 Cottle Road
San Jose, CA 95193
Produced in the United States 1/05, revised 4/06
All rights reserved.
Deskstar® is a trademark of Hitachi Global Storage Technologies.
References in this publications to Hitachi Global Storage
Technologies products, programs, or services, do not imply that
Hitachi Global Storage Technologies intends to make these avail-
able in all countries in which it operates.
Product information is provided for information purposes only,
and does not constitute a warranty. Information is true as of the
date of publication and is subject to change. Actual results may
vary. This publication is for general guidance only. Photographs
may show design models.
How to Read the Model Number
Example:
HDS728040PLAT20 = 40GB/2MB
H = Hitachi
D = Deskstar
S = Standard (or T for Two-disk for example)
72 = 7200 RPM
80 = full capacity = 80GB
40 = model capacity = 40GB
P = generation code
L = 1-inch form factor
AT = ATA (or A3 = SATA 3.0Gb/s)
2 = 2MB buffer (or 8 = 8MB)
0 = Reserved
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 Support)
H i t a c h i D e s k s t a r ® 7 K 8 0
Product Deskstar 7K80 Deskstar 7K80
Model names HDS728040PLAT20 HDS728040PLA320
HDS728080PLAT20 HDS728080PLA380
Specifications
Configuration Parallel-ATA Serial-ATA
Interface ATA-133 SATA II 3.0Gb/s
Capacity (GB)
1
80 / 40
Data heads (physical) 2 / 1
Data disks 1
Performance
Data buffer
2
2 MB 8 MB (80GB) / 2 MB (40GB)
Rotational speed (rpm) 7,200
Media transfer rate (max. Mbits/sec) 757
Interface transfer rate (max. MB/sec) 133 300
Sustained data rate (MB/sec) 61.1 - 29.6 (zone 0 - 29)
Average seek time (ms) (read, typical)
3
8.8
Reliability
Error rate (non-recoverable) 1 in 10E14
Start/stops (at 40° C) 50,000
Acoustic
Idle (Bels) 2.6
Power
Requirement +5 VDC (+/- 5%)
+12 VDC (+10 %/-8%)
Dissipation
Startup current (max. A) 1.72 (+12V) & 0.68 (+5V) 1.83 (+12V) & 1.00 (+5V)
Idle (W) 4.7 5.7
Physical Size
Height (mm) 25.4
Width (mm) 101.6
Depth (mm) 146
Weight (max. g) 560
Environmental characteristics
Operating
Ambient temperature (C) 5° to 55°
Relative humidity (non-condensing) 8% to 80%
Shock (half sine wave, 2ms) (G) 55
Vibration (random (RMS)) (G) 0.67 for horizontal
0.56 for vertical
Non-operating
Ambient temperature (C) -40° to 65°
Relative humidity (non-condensing) 5% to 95%
Shock (half sine wave, 2ms) (G) 350
Vibration (random (RMS)) (G) 1.04 rms (XYZ)
RoHS Compliant
4
Some part numbers Yes