Western Digital Red 4TB + Express Care WD40EFRX + EXP CARE Leaflet

Product codes
WD40EFRX + EXP CARE
Page of 2
WD Red
NAS Hard Drives
WD Red is designed specifically for NAS systems 
that have 1 to 5 drive bays in both 3.5-inch and 
2.5-inch form factors. 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 FACTORS
3.5-inch 
2.5-inch
ROTATIONAL SPEED
IntelliPower
CAPACITIES
3.5-inch: 1 TB to 4 TB
2.5-inch: 750 GB and 1 TB
MODEL NUMBERS
3.5-inch
2.5-inch
WD40EFRX
WD10JFCX
WD30EFRX
WD7500BFCX
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. 
3D Active Balance
 Plus
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. (EFRX 
models only)
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.