Enterprise SATA Hard Drives
Outside of the
boardroom it’s all
the power you need
Massive 2 TB capacity
High performance technology
24x7 reliability
WD RE4 drives combine 64 MB cache with
SATA 3 Gb/s transfer rate and dual stage
actuation for lightning-fast performance in
demanding server and storage applications.
Enterprise SATA Hard Drives
Product Features
Massive capacity
WD RE4 Enterprise SATA drives are
available with up to 2 TB of cavernous
Dual processor
With double the processing power,
WD RE4 boasts the highest
performance of any drive in the
RE family.
Enhanced RAFF technology includes
sophisticated electronics to monitor
the drive and correct both linear and
rotational vibration in real time. The
result is a significant performance
improvement in high vibration
environments over the previous
generation of drives.
Dual actuator technology
A head positioning system with two
actuators that improves positional
accuracy over the data track(s). The
primary actuator provides coarse
displacement using conventional
electromagnetic actuator principles. The
secondary actuator uses piezoelectric
motion to fine tune the head positioning
to a higher degree of accuracy.
The motor shaft is secured at both ends
to reduce system-induced vibration and
stabilize platters for accurate tracking
during read and write operations.
Calculates optimum seek speeds to
lower power consumption, noise, and
Multi-axis shock sensor
Thermal extended burn-in test
RAID-specific, time-limited
error recovery (TLER)
Third generation dynamic fly
Automatically detects the subtlest
shock events and compensates to
protect the data.
Prevents drive fallout caused by the
extended hard drive error-recovery
processes common to desktop drives.
Each drive is put through extended
burn-in testing with thermal cycling to
ensure reliable operation.
Each read-write head’s fly height is
adjusted in real time for optimum
NoTouch™ ramp load
The recording head never touches the
disk media ensuring significantly less
wear to the recording head and media
as well as better drive protection in
Product Specifications
SATA 3 Gb/s
Form factor
Spin speed
7200 RPM
2 TB
1.5 TB
Limited Warranty
5 years
64 MB
Western Digital, WD, the WD logo and Put Your Life On It are registered trademarks in the U.S. and other countries; IntelliSeek, NoTouch, RAFF and StableTrac are trademarks of Western Digital Technologies, Inc. Other marks may be mentioned herein that belong to other companies.
Pictures shown may vary from actual product. Not all products may be available in all regions of the world. All product and packaging specifications subject to change without notice.
© 2010 Western Digital Technologies, Inc. All rights reserved.
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 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.
2178-771114-A01 Jan 2010