WD WD40EFRX 4TB Red 3.5” IntelliPower SATA3 NAS Hard Drive is discontinued.
The below option is the replacement/alternative model:
The WD Red family just got bigger
Our formula of success has led to the growth of WD Red into the highest capacities possible. Available up to 6 TB, WD offers an even broader, more comprehensive portfolio of NAS solutions for our customers spanning from a total of 1 to 8 bays. The WD Red family just got bigger.
NASware grows to 3.0
Built off of our determination to deliver the best NAS experience, NASware 3.0 extends our promise by further optimizing WD Red for the NAS environment with added support for 6 to 8 NAS bays. WD Red now supports small NAS systems from 1 to 8 bays thanks to NASware 3.0, which further improves drive compatibility and reliability. At 48 TB of total capacity in an 8 bay system, WD Red expands your NAS experience.
Designed specifically with SMB customers in mind, the WD Red family has expanded with the addition of WD Red Pro, which is available for the 8 to 16 bay medium to large-scale NAS environments. With capacities up to 6 TB, WD Red Pro carries a 5-year limited warranty and was engineered to handle the increased workloads from your business.
Experienced in NAS
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.
*Data reflects products in production as of July 2014.
NAS for Home
Take your connected home environment to the next level with a NAS system that is equipped with WD Red hard drives and enjoy streaming your media, backing up your computers, file sharing and managing your digital content faster and easier. The WD Red NASware 3.0 experience with increased compatibility makes sharing from your mobile device, computer, TV, stereo and more an instant gratification. WD Red enables you to create your own reliable Personal Cloud.
NAS for Small Business
Increase the efficiency and productivity of your small business with WD Red hard drives for your 1 to 8 bay NAS system. WD Red comes equipped with NASware 3.0, which increases system compatibility allowing for seamless integration with your existing network infrastructure. Add value to your business by enabling your employees to quickly share their files and back up folders reliably with WD Red NAS hard drives in your NAS solution. For medium to large business environments that use up to 16 bay NAS systems, use WD Red Pro.
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.
The Right Choice!
WD Red is designed specifically for home and small office NAS systems and PCs with RAID.
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 3.0 is designed for the 24x7 environment.
Advanced firmware technology built into every WD Red drive, NASware 3.0 enables seamless integration, robust data protection and optimal performance for systems operating in NAS and RAID environments.
Longer Warranty Coverage
WD Red hard drives are backed by a 3-year limited warranty for greater peace of mind and a longer warranty coverage that matches most NAS system manufacturers.
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) and a 3-year limited warranty.
Lower Operating Temperatures
Innovative technology reduces power consumption and lowers the operating temperature, resulting in a more reliable and affordable solution for always on NAS environments.
Specifically designed and tested for small office and home office, 1-8 bay NAS systems and PCs with RAID.
For systems that use more than 8 bays, please consider WD Red Pro hard drives.*
WD’s exclusive NASware technology, built into every WD Red hard drive.
WD’s exclusive NASware technology, which is built into every WD Red™ hard drive, improves NAS storage performance by reducing common hard drive concerns in NAS systems including concerns for things like compatibility, integration, upgradeability, reliability and cost-of-ownership that are experienced with a hard drive designed for desktop computers.
Desktop hard drives are designed for desktop computers. WD Red = NAS.
Desktop hard drives are designed for optimum performance and reliability in a desktop personal computer. Although they are an affordable alternative to enterprise-class drives, desktop drives have a higher level of risk for potential data loss and failure in an always-on RAID configured NAS system. Specific issues that you may experience using desktop drives in a NAS or RAID environment include:
Beyond the Desktop with NASware
WD Red drives include WD's exclusive NASware technology that addresses many of the challenges a traditional desktop hard drive has in a NAS system. WD works directly with our partners to test compatibility and reduce our customer's guess work as to which drive is right for their NAS system. Designed to deliver a better customer experience in small NAS systems, this innovative firmware finely balances the most important attributes of performance, power, and reliability in multiple drive environments. The unique algorithms in NASware optimize power and performance without compromising on the attributes that NAS-system owners value.
Save power and money
NASware further improves drive reliability and protects your data in the event of a power loss or disruption. Optimized power usage of WD Red drives results in significant power savings and lower hard drive operating temperatures within a small NAS environment, improving the overall reliability and performance of the drive and reduces the NAS cost of ownership.
Intelligent Error Recovery
With built in intelligent error recovery controls, NASware also prevents hard drives from being dropped off the RAID due to extended error recovery. This feature provides more availability and less down time when rebuilding the RAID.
To further improve reliability, NASware minimizes the data corruption or loss in the event of an unexpected power loss by completing the command in process before shutting down.
Important Features for System Integrators
In addition to features that make WD Red™ drives perfect for populating or upgrading NAS systems, NASware brings features that system integrators need when building specialized NAS systems.
- Streaming Support - NASware provides built-in compatibility with the ATA Streaming Feature Set, which is important for AV storage applications such as Windows Media Center.
- SMART Command Transport (SCT) support - NASware allows monitoring and measuring of drive performance via the SMART command set. SMART can return data like thermal profiles, drive access statistics and more. NASware also delivers temperature accuracy within 1°C.
- Power Management Support - Enables optimized power usage within the NAS system and protects your data in the event of a power loss or disruption.
- BIC Performance - Optimized seek to provide BIC performance while reducing the power and acoustics.
Western Digital WD Red WD40EFRX 3.5" 4TB SATA 6Gb/s Hard Drive
|Dimensions (WxDxH)||4.0 x 5.79 x 1.03 in|
|Form Factor||3.5" NAS HDD|
|Interface||SATA III 6Gb/s|
|Rotational speed (RPM)||IntelliPower|
- Manufacturer Warranty
- 3 Years Limited Warranty
- Manufacturer Contact Info
1800 429 861
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