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WD S25SAS Hard Drives

High perrane.

Lw pwer.

Enterprise-readSAS strage.

Ultra-fast SAS storage

Low power consumption

Industry-leading reliability

These 2.5-inch SAS drives offer the

powerful combination of enterprise-

class performance and reduced power

consumption required for demanding

high-performance computing and mission-

critical environments.

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Prdut Speifatins

WD S25SAS Hard Drives

Western Digital, WD, the WD logo and Put Your Lie On It are registered trademarks in the U.S. and other countries; NoTouch and RAFF are trademarks o Western Digital Technologies, Inc. Other marks may be mentioned herein that belong to other companies. Pictures shown may vary rom

actual product. Not all products may be available in all regions o the world. All product and packaging specifcations subject to change without notice.

© 2012 Western Digital Technologies, Inc. All rights reserved.

 As used or 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 or transer rate or interace, megabyte per second (MB/s) = one

million bytes per second, and gigabit per second (Gb/s) = one billion bits per second.Eective maximum SAS 6 Gb/s transer rate calculated according to the SAS specifcation published by the INCITS T10 organization as o the date o this document. Visit www.t10.org or details.

2178-771138-A03 Jan 2012

Prdut Features

Highest perrane

in its lassWD S25 delivers 6 Gb/s transer rates,

sustained sequential data rates o 202

MB/s and high random I/O rates.

Lw pwer nsuptin This 2.5-inch SAS drive requires less

than 8 watts to operate. And its smallorm-actor allows or more system

airow resulting in lower cooling costs.

Industr’s highest

reliabilit ratingWith a feld-tested 2 million hour MTBF,

this high perormance drive is perect

or enterprise server and enterprise

storage applications.

Ultra-ast SAS strage The ultra-ast 6 Gb/s SAS interace

enables optimum data reliability,

availability, and scalability.

Enterprise readWD S25 SAS hard drives provide up to900 GB o high perormance storage

suitable or both enterprise server andenterprise storage applications.

Dual prt, ull duplex

nnetivitFor mission-critical enterprisetopologies.

Ultra-l peratin The small orm-actor, 70 percent

smaller than 3.5-inch drives, allows

more system airow resulting in lower

cooling costs. In an environment where

space and power are limited, the WD

S25 drives are an eective solution

or high perormance computing

solutions such as power-constraineddata centers, database transactionprocessing, and rack, tower, and blade

servers.

Envirnentall respnsibleIn addition to being RoHS compliant,

these drives are built with halogen

reduced components.

NTuh™ rap lad

tehnlg The recording head never touches the

disk media ensuring signifcantly less

wear to the recording head and media

as well as better drive protection in

transit.

Rtar Aeleratin FeedFrward (RAFF™ )Optimizes operation and perormance

when the drives are used in vibration-

prone, multi-drive chassis.

INTERFAcE FoRm FAcToR SPIN SPEED cAcHE

SAS 6 Gb/s 2.5-inch 10,000 RPM 32 MB

moDELS cAPAcITIES mTBF LImITED WARRANTy

WD3001BKHG

WD4501BKHG

WD6001BKHG

WD9001BKHG

300 GB

450 GB

600 GB

900 GB

2 million hours 5 years