Western Digital WD Red, 4x 1TB 4XWD10EFRX Fascicule

WD Red

™

NAS Hard Drives

WD Red is designed specifically for small NAS systems 
that have 1 to 5 drive bays. The drives are designed and 
extensively tested for compatibility in the unique 24x7 
operating environment and for the demanding system 
requirements of home and small office NAS.

INTERFACE

SATA 6 Gb/s

FORM FACTOR

3.5-inch

ROTATIONAL SPEED

IntelliPower

™

CAPACITIES

1 TB to 4 TB

MODEL NUMBERS

WD40EFRX

WD30EFRX

WD20EFRX

WD10EFRX

Product Features

Expanded solutions 
Our formula of success has led 

growth of WD Red into higher 

capacities and expansion into new 

2.5-inch solutions. We now offer 

a broader, more comprehensive 

portfolio of NAS hard drives for our 

customers. It is not just about NAS 

drives, it is REDvolutionary

™

.

Next generation experience
Every component, line of code, and 

product decision was built on our 

passion and determination to deliver 

the best NAS experience. The next 

generation of WD Red hard drives 

delivers on this promise with massive 

capacity and NASware

™

 2.0, which 

further improves drive reliability and 

protects your data in the event of a 

power loss or disruption. 

Exclusive NASware 2.0 
technology
Our exclusive technology, NASware 

2.0, makes WD Red thrive in the 

demanding small-NAS environment. 

By adding WD Red to your NAS 

system, not only is everything more 

efficient and reliable, you can better 

protect your data investment.

Experienced in NAS
In all of our cultures around the world, 

first impressions are what leave a 

mark. With superior technology that 

is driven to impress, WD Red is a 

reflection of the most extensive NAS 

partner compatibility-testing list that is 

available on the market.* That means 

when you buy a NAS enclosure, you 

can trust that WD Red will be the 

most compatible drive available. Our 

pride is in our product and our vision 

is shared with our customers. 

™

Our enhanced dual-plane balance 

control technology significantly 

improves the overall drive 

performance and reliability. Hard 

drives that are not properly balanced 

may cause excessive vibration and 

noise in a multi-drive system, reduce 

the hard drive life span, and degrade 

the performance over time. 

The right choice
WD Red is designed specifically for 

home and small office NAS systems 

and PCs with RAID.

*Data reflects products in production as of August 2013.

Enhanced reliability
Since your NAS system is always 

on, a highly reliable drive is essential. 

With a 35% MTBF improvement over 

standard drives, the WD Red drive 

with NASware 2.0 is designed for the 

24x7 environment. 

NAS compatibility
Advanced firmware technology built 

into every WD Red drive, NASware 

2.0 enables seamless integration, 

robust data protection and optimal 

performance for systems operating in 

NAS and RAID environments.

The secret is the next-generation 
technology
WD’s next generation NASware 

2.0 technology improves NAS 

storage performance by reducing 

common hard drive concerns in 

NAS systems including concerns for 

things like compatibility, integration, 

upgrade ability, reliability and cost of 

ownership that are experienced with 

a hard drive designed for desktop 

computers.

Energy efficient and money 
saving
We keep power consumption low 

which keeps your NAS system happy 

and your wallet, too.

Lower operating temperatures
Reduce your electricity bill with WD 

Red drives. Innovative technology 

reduces power consumption and 

lowers the operating temperature, 

resulting in a more reliable and 

affordable solution for always on  

NAS environments.

Longer warranty coverage
The WD Red drive is backed by a 

3-year limited warranty for greater 

peace of mind.

Need help? We offer premium 
support
Every WD Red hard drive comes 

with our world-class professional 

support services including a premium 

dedicated 24/7 support line (available 

in English, other regional support 

hours vary).*

* Support outside of normal business hours is available in English only 

Go to http://support.wd.com for further details.

Applications

WD Red NAS hard drives are recommended for use in home and small office 1-5 bay NAS systems. For systems that use more than 5 bays or are rack mount 

solutions, please consider WD Datacenter hard drives.*

*  WD hard drives are designed and tested for use in specific applications and environments. This ensures that your hard drive is compatible with and functions properly in your 

application. Our hard drives are warranted against defects in materials and workmanship in the system for which they were designed. Use in systems other than for what the hard drive 

was designed could result in compatibility problems that affect proper function, unrelated to material and/or workmanship defects. For best results, be sure to select the appropriate 

product for your application by consulting our product spec sheets on our website at www.wd.com or by calling our customer support line where we would be happy to help you 

through the selection process.