
© 2012 HGST, a Western Digital company, 3403 Yerba Buena Road, San Jose, CA 95135 USA. Produced in the United States 8/09, rev. 9/09, 11/09, 8/11, 9/12. All rights reserved.
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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.hgst.com/support, for additional information on product specifications. Photographs may show design models.
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How to read the Deskstar model number
HDS721010CLA332 = 1TB, SATA 3Gb/s,
32MB buffer
H = HGST
D = Deskstar
S = Standard
72 = 7200 RPM
10 = Full capacity — 1TB
10 = Capacity this model, 10 = 1TB
(75 = 750GB, 64 = 640GB, 50 = 500GB,
32 = 320GB, 25 = 250GB, 16 = 160GB)
C = Generation code
L = 26.1mm z-height
A3 = Interface, SATA 3Gb/s (A6 = SATA 6Gb/s)
3 = 32MB buffer (6 = 16MB, 8 = 8MB)
2 = Reserved
Information and Technical Support
www.hgst.com (Main Web site)
www.hgst.com/partners (Partner Web site)
North America
Toll free: 1 888 426-5214, Direct: 1 408 717-8087
Asia Pacific
EMEA and UK
Germany
Program Support
Specifications
Models HDS721010CLA332
HDS721075CLA332
HDS721064CLA332
HDS721050CLA362
HDS721032CLA362
HDS721025CLA382
HDS721016CLA382
HDS721010CLA632
HDS721075CLA632
HDS721064CLA632
HDS721050CLA662
HDS721032CLA662
HDS721025CLA682
HDS721016CLA682
Configuration
Interface SATA 3Gb/s SATA 6Gb/s
Capacity (GB)11TB / 750 / 640 / 500
320 / 250 / 160 f
Max. areal density (Gbits/sq. in) 350 f
Performance
Data buffer (MB)232 / 32 / 32 / 16 / 16 / 8 / 8 f
Rotational speed 7200 RPM f
Media transfer rate (Mbits/s, max) 1546 f
Interface transfer rate (MB/s, max) 300 600
Reliability
Error rate (non-recoverable, bits read) 1 in 1014 f
Load/unload cycles (at 40° C) 300,000 f
Availability3(hrs/day x days/wk) 24x7 f
Power
Requirement +5 VDC (+/-5%), +12 VDC (+/-10%) f
Startup current (A, max.) 1.5 (+5V), 2.0 (+12V) f
Idle (W, avg.) 1TB / 750GB / 640GB
500GB / 320GB / 250GB / 160GB
4.4
3.6 f
Physical size
z-height (mm) 26.1 f
Dimensions (width x depth, mm) 101.6 (+/-0.25) x 147 f
Weight (g, max.) 1TB / 750GB / 640GB
500GB / 320GB / 250GB / 160GB
680
400 f
Environmental (operating)
Ambient temperature 0oto 60oC f
Relative humidity (non-condensing) 8% to 90% f
Shock (half-sine wave, G) 70 f
Vibration (G RMS 5 to 500 Hz) 0.67 (XYZ) f
Environmental (non-operating)
Ambient temperature -40oto 70oC f
Relative humidity (non-condensing) 5% to 95% f
Shock (half-sine wave, G (2ms)) 350 f
Vibration, random (G RMS 2 to 200 Hz) 1.04 (XYZ) f
1One GB is equal to one billion bytes and one TB equals
1,000GB (one trillion bytes) when referring to hard drive
capacity. Accessible capacity will vary from the stated
capacity due to formatting and partitioning of the hard
drive, the computer’s operating system, and other factors.
2Portion of buffer capacity used for firmware
3Intended for low duty cycle, non mission-critical
applications in PC, nearline, and consumer
electronics environments, which may vary from
application to application. Note that customer
environments may vary from application to
application.
Deskstar™7K1000.C