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WD RE4

Enterprise SATA Hard Drives

Ideal for servers, video surveillance, and other demanding 
write-intensive applications, WD RE4 7200 RPM Enterprise 
SATA hard drives offer up to 2 TB capacity, 64 MB cache, 
4th generation vibration tolerance and 5-year limited 
warranty.

INTERFACE

SATA 3 Gb/s

WIDTH/HEIGHT

3.5-inch/1-inch

ROTATIONAL SPEED

7200 RPM

CAPACITIES

250 GB to 2 TB

MODEL NUMBERS

WD2003FYYS

WD5003ABYX

WD1003FBYX

WD2503ABYX

Note:

 Not all products may be 

available in all regions of the 
world.

Massive capacity

WD RE4 Enterprise SATA drives are 
available with up to 2 TB of cavernous 
capacity.

Dual processor 

With double the processing power, 
WD RE4 boasts the highest performance 
of any drive in the WD RE family.

RAFF™

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. (2 TB 
only)

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. (1 TB 
and larger drives only)

IntelliSeek™

Calculates optimum seek speeds to lower 
power consumption, noise, and vibration.

Multi-axis shock sensor

Automatically detects the subtlest shock 
events and compensates to protect the 
data.

RAID-specific, time-limited error 
recovery (TLER)

Prevents drive fallout caused by the 
extended hard drive error-recovery 
processes common to desktop drives. 

NoTouch™ ramp load 
technology

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 transit.

Thermal extended burn-in test

Each drive is put through extended burn-
in testing with thermal cycling to ensure 
reliable operation.

Third generation dynamic fly 
height

Each read-write head’s fly height is 
adjusted in real time for optimum 
reliability.

24x7 reliability 

With 1.2 million hours MTBF (tested at 
100% duty cycle), these drives have the 
highest available reliability rating on a 
high-capacity drive.

Product Benefits

Applications

Ideal for servers, storage arrays, video surveillance, and other demanding applications.

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