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WD RE

2

SATA Hard Drives

Key Specifications

Interface:

SATA 3 Gb/s

Form factor:

3.5-inch

Cache:

16 MB

Access time:

8.9 ms

Limited warranty:

5-year

Capacities

160 GB – 750 GB

Model Numbers

WD1601ABYS, WD3201ABYS,

WD4001ABYS, WD5001ABYS,

WD7500AYYS

Technology Features

IntelliSeek

– Optimizes seek speeds to lower power

consumption, noise, and vibration.

Perpendicular Magnetic Recording (PMR) 

– WD RE2 drives

employ PMR technology to achieve even greater areal density.

Preemptive Wear Leveling (PWL) 

– The drive arm frequently

sweeps across the disk to reduce uneven wear on the drive
surface.

Rotary Acceleration Feed Forward (RAFF

)

– Provides

best-in-class vibration tolerance by optimizing operation and
performance when the drives are used in vibration-prone,
multi-drive systems such as rack-mounted servers or network
storage.

SecurePark

– The recording heads are parked off the disk

surface during spin up, spin down, and when the drive is off.
This ensures the recording head never touches the disk surface
resulting in improved long-term reliability due to less head wear
and improved non-operational shock tolerance.

StableTrac

– The motor shaft is secured at both ends to

reduce system-induced vibration and stabilize platters for
accurate tracking during read and write operations.

Western Digital, WD, the WD logo, and Put Your Life On It are registered trademarks in the U.S. and other countries; and Active Power Save, IntelliSeek, RAFF,
SecurePark, and StableTrac are trademarks of Western Digital Technologies, Inc. Other marks may be mentioned herein that belong to other companies. Product
specifications subject to change without notice. © 2008 Western Digital Technologies, Inc. All rights reserved.

One gigabyte (GB) = one billion bytes. Total accessible capacity varies depending on operating environment. 

2178-701081-A03    Feb 2008

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