Western Digital Caviar Black 640GB WD6402AAEX Fascicule

®

 Black

™

Desktop Hard Drives

WD Caviar Black drives combine a high performance 

electronics architecture with a rock solid mechanical 

architecture to deliver the perfect storage solution for your 

fully-loaded PC or maxed out gaming machine. Cool drive 

operation, no-touch head technology, leading-edge 

vibration protection ensure enhanced reliability. And we 

back it all up with a 5-year limited warranty. 

SATA 6 Gb/s
SATA 3 Gb/s

3.5-inch/1-inch

7200 RPM

500 GB to 2 TB

WD2001FASS

WD6402AAEX

WD1002FAEX

WD6401AALS

WD1001FALS

WD5001AALS

WD7501AALS

Note: Not all products may be 
available in all regions of the 
world.

„

Dual processor — Twice the 
processing power to maximize 
performance. 

„

Colossal cache — Bigger, faster 
cache of up to 64 MB means faster 
performance. 

„

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 a 
piezoelectric motor 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. (750 GB, 1 TB, and 2 TB 
models only)

„

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.

WD Caviar Black SATA drives are 
available in capacities up to 2 TB.

We perform tests on hundreds of 
systems and a multitude of platforms 
in our FIT Lab™ and Mobile 
Compatibility Lab to give our 
customers confidence that our drives 
will work in their systems.