User Manual
WD Purple
™
NV
CAN ICES-3 (B) / NMB-3 (B)
Western Digital
3355 Michelson Drive, Suite 100
Irvine, California 92612
U.S.A.
For service and literature:
http://support.wd.com
www.wd.com
800.ASK.4WDC
(800.275.4932)
North America
800.832.4778 Spanish
+86.21.2603.7560 Asia Pacic
00800.27549338 Europe
(toll free where available)
+31.880062100 Europe/Middle East/Africa
Western Digital, WD, the WD logo, and WD Purple are registered trademarks in
the U.S. and other countries; AllFrame, IntelliSeek, IntelliPower, and FIT Lab are
trademarks of Western Digital Technologies, Inc. in the U.S. and other countries.
Other marks may be mentioned herein that belong to other companies. Product
specications subject to change without notice.
© 2015 Western Digital Technologies, Inc. All rights reserved.
2879-800050-A04 April 2015
Specications 6 TB 4 TB
Model number
1
WD6NPURX WD4NPURX
Formatted capacity
2
6 TB 4 TB
Form factor 3.5-inch 3.5-inch
Advanced Format (AF) Yes Yes
RoHS compliant
3
Yes Yes
Performance
Data transfer rate (max)
Buffer to host
Host to/from drive (sustained)
6 Gb/s
171 MB/s
6 Gb/s
150 MB/s
Cache (MB) 64 64
Rotational speed (RPM) IntelliPower IntelliPower
Reliability/Data Integrity
Load/unload cycles
4
300,000 300,000
Non-recoverable read errors per bits read
<1 in 10
14
<1 in 10
14
Limited warranty (years)
5
3 3
Power Management
Average power requirements (W)
Read/Write
Idle
Standby and Sleep
5.90
4.90
0.40
4.80
4.33
0.52
Environmental Specications
6
Temperature (°C, on the base casting)
Operating
Non-operating
0 to 65
-40 to 70
0 to 65
-40 to 70
Shock (Gs)
Operating (2 ms, read/write)
Operating (2 ms, read)
Non-operating (2 ms)
30
65
250
30
65
250
Acoustics (dBA)
7
Idle
Seek (average)
25
26
25
26
Physical Dimensions
Height (in./mm, max) 1.028/26.1 1.028/26.1
Length (in./mm, max) 5.787/147 5.787/147
Width (in./mm, ± .01 in.) 4/101.6 4/101.6
Weight (lb./kg, ± 10%) 1.58/0.72 1.50/0.68
1
Not all products may be available in all regions of the world.
2
As used for storage capacity, one megabyte (MB) = one million bytes, one gigabyte (GB) = one billion bytes, and one terabyte (TB) = one trillion bytes. Total accessible capacity varies depending on operating environment. As used for buffer or cache, one megabyte (MB) = 1,048,576 bytes. As used for transfer
rate or interface, megabyte per second (MB/s) = one million bytes per second, and gigabit per second (Gb/s) = one billion bits per second. Effective maximum SATA 6 Gb/s transfer rate calculated according to the Serial ATA specication published by the SATA-IO organization as of the date of this specication
sheet. Visit www.sata-io.org for details.
3
WD hard drive products manufactured and sold worldwide after June 8, 2011, meet or exceed Restriction of Hazardous Substances (RoHS) compliance requirements as mandated by the RoHS Directive 2011/65/EU.
4
Controlled unload at ambient condition.
5
See http://support.wd.com/warranty for regional specic warranty details.
6
No non-recoverable errors during operating tests or after non-operating tests.
7
Sound power level.