Western Digital Caviar Green 640GB WD6400AADS User Manual

Product codes
WD6400AADS
Page of 3
WD Caviar
®
 Green
Desktop Hard Drives
As hard drive capacities increase, the power required to run 
those drives increases as well. WD Caviar Green drives 
make it possible for energy-conscious customers to build 
systems with higher capacities and the right balance of 
system performance, ensured reliability, and energy 
conservation. 
INTERFACE
SATA
WIDTH/HEIGHT
3.5-inch/1-inch
ROTATIONAL SPEED
IntelliPower™
CAPACITIES
500 GB to 2 TB
MODEL NUMBERS
WD20EARS
WD10EADS
WD6400AACS
WD20EADS
WD8000AARS
WD5000AADS
WD15EARS
WD7500AADS
WD15EADS
WD6400AARS
WD10EARS
WD6400AADS
Note: Not all products may be 
available in all regions of the 
world.
Reduced power consumption
WD has reduced power consumption 
by up to 40 percent compared to 
standard desktop drives with the 
combination of WD's IntelliSeek™, 
NoTouch™, and IntelliPower 
technologies.
Helps enable eco-friendly PCs
By using environmentally-conscious 
PCs with our WD Caviar Green drives 
on board, large organizations with 
many desktop computers can 
minimize their carbon footprint and 
save real money on electricity costs.
Cool and quiet 
WD GreenPower Technology™ yields 
lower operating temperatures for 
increased reliability and low acoustics 
for ultra-quiet PCs and external drives.
Perfect for external drives
External drive manufacturers can 
eliminate the need for a fan in a high-
capacity product with a WD Caviar 
Green drive, the coolest and quietest 
in its class. 
IntelliPower 
A fine-tuned balance of spin speed, 
transfer rate, and caching algorithms 
designed to deliver both significant 
power savings and solid performance. 
Additionally, WD Caviar Green drives 
consume less current during startup 
allowing lower peak loads on systems 
as they are booted.
IntelliSeek
Calculates optimum seek speeds to 
lower power consumption, noise, and 
vibration.
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.
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. (2 TB model only)
Advanced power technology 
WD Caviar Green drives consume less 
current during startup allowing lower 
peak loads. Electronic components 
deliver best-in-class low power 
consumption for reduced power 
requirements and increased reliability.
Advanced Formatting
Technology being adopted by WD and 
other drive manufacturers to increase 
media format efficiencies, thus 
enabling larger drive capacities. 
(WDxxEARS and WDxxxxAARS 
models only) 
Product Features