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WESTERN DIGITAL 500GB 8MB 7200RPM USB2.0 Elements
Product Features 
Easy plug and play storage 
USB 2.0 interface – high-speed connection for maximum throughput 
Cool, compact, metal case 
Applications 
Fast, simple, reliable add-on storage for PC and Macintosh® computers 
Preformatted for immediate use 
Kit Contents 
External hard drive 
6 foot (1.8m) USB 2.0 certified interface cable 
AC adapter with power cord 
Quick Install Guide
IMPORTANT: A USB 2.0 host and USB 2.0 certified cable are required for Hi-Speed USB performance. 
*Pre-formatted for Windows. Simple Macintosh formatting instructions included. System Requirements Interface Specifications 
Macintosh ® 
Available USB 2.0 or 1.1 port 
Mac OS X v10.2+ 
Windows ® 
Available USB 2.0 or 1.1 port 
Windows 2000/XP 
USB 2.0 
USB 2.0 and 1.1 compliant1 
One external “B” 4-pin USB receptacle 
Serial bus data transfer rates of up to 480 Mb/sec 
Performance Specifications Physical Dimensions 
Average read seek 8.9 ms (average) 
Rotational speed 7200 RPM 
RoHS compliant2 Yes 
Warranty3 1-year 
Height 1.42 in. (36.14 mm) ± .10 
Length 8.02 in. (203.82 mm) ± .10 
Width 4.90 in. (124.68 mm) ± .10 
Weight 2.24 lb. (1.02 kg) 
Environmental Specifications 
Operating temperature 5°C to 35°C 
Non-operating temperature -20°C to 65°C 
Power Requirements 
AC input voltage 100-240 VAC 
AC input frequency 50-60 Hz 
Drive Specifications 
250 GB 320 GB 500 GB 
Formatted capacity4 250,059 MB 320,072 MB 500,107 MB 
Actuator type Rotary voice coil Rotary voice coil Rotary voice coil 
Servo type Embedded Embedded Embedded 
Dedicated landing zone Yes Yes Yes 
Actuator latch/auto park Yes Yes Yes 
A USB 2.0 host and USB 2.0 certified cable are required to obtain Hi-Speed USB performance. 
WD hard drive products manufactured after and sold worldwide after June 1, 2006 meet or exceed Restriction of Hazardous Substances (RoHS) compliance requirements as mandated by the European Union for electrical and electronic products. The RoHS Directive 2002/95/EC of the European Parliament, which is effective in the EU beginning July 1, 2006, aims to protect human health and the environment by restricting the use of certain hazardous substances in new equipment, and consists of restrictions on lead, mercury, cadmium, and other substances. 
One-year standard warranty, unless otherwise required by law. 
This capacity is reported using the decimal numbering system (1 MB = 1,000,000 bytes and 1 GB = 1,000,000,000 bytes). Both Windows and Macintosh operating systems use the binary numbering system, which results in a lower reported capacity.