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Built with NASware technology, WD Red drives run cooler and are extensively tested for NAS enclosure compatibility and 24/7 reliability. Not every drive is made for NAS. But WD Red drives are.
Western Digital 1TB Red 64MB 3.5 Desktop Sata 6GB
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1TB Hard Drive Designed For NAS

The WD10EFRX 1TB Red Hard Drive is designed specifically for NAS systems that have 1 to 8 drive bays in 3.5-inch form factor. 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.

Energy efficient

Reduce your electricity bill and carbon footprint 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 24x7 NAS environments.

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 drivelife span, and degrade the performance over time.

Premium support

Exclusively for WD Red drive customers, our free dedicated 24x7 support line ensures you get the help you need anytime.

Longer warranty coverage

The WD Red drive is backed by a 3-year limited warranty for greater peace of mind.



Enhanced Reliability

Your NAS systems is always on, a highly reliable drive is essential. With a 35% MTBF improvement over standard desktop drives, the WD Red drive is designed and manufactured to be a more reliable and robust solution.
The right choice WD Red is designed specifically for home and small office NAS systems and PCs with RAID.






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. WD pride is in their product and their vision is shared with WD's customers.





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 Hard Drive 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. 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 24 bay NAS systems, use WD Red Pro.



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In Stock: 7-10 Days
£55.44
£66.53 Inc Vat
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WD WD40EFAX Red 3.5 Inch 4 TB Serial ATA III
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Store and Stream your Digital Content from your NAS Fast and Reliably using a WD Red™ NAS Hard Drive There's a leading edge WD Red™ NAS hard drive for every compatible NAS system to store your precious data. With drives up to 6TB, WD Red™ offers a wide array of storage for customers looking to build a NAS solution. Built and tested for personal and home NAS systems with up to 8-bays, these drives pack all the punch you need in one powerhouse unit for storing, archiving, and sharing. With WD Red™, you're ready for what's next.

WD Red™ for Personal or Home Office

Stream, backup, share, and organize your digital content at home with a NAS and WD Red™ NAS hard drives designed to effortlessly share content with the devices in your personal or home office environments. NASware 3.0 technology increases your drives' compatibility with your existing network and devices, TV, stereo, and more. Live in a connected world.

Exclusive NASware 3.0

Not just any drive will do. Get up to 48TB of capacity in your 8-bay system and with WD's exclusive NASware 3.0 technology, you can optimize each and every drive. Built into every WD Red™ NAS hard drive, NASware 3.0's advanced technology improves your system's storage performance by increasing compatibility, integration, upgradeability, and reliability.

Built for Optimum NAS Compatibility

Designed for personal and home office NAS systems, our unique algorithm balances performance and reliability in NAS and RAID environments. WD Red™ drives are optimized for environments where idle time is available to perform necessary background operations. To ensure optimal performance, always check compatibility with your system. WD Red™ drives may not be suitable for higher workload environments. For ZFS file systems and overall NAS system compatibility, we highly recommend WD Red™ Plus drives, which are optimized for higher workloads.

24/7 Environment

Since your NAS system is always on, a reliable drive is essential. With an MTBF of up to 1 million hours, the WD Red™ drive is engineered to tackle 24x7 environments.

Premium Support and a 3-year Limited Warranty

Confidently upgrade your NAS performance with the assurance of a 3-year limited warranty, coupled with world-class support services included with every WD Red™ drive.

Desktop Drives vs. WD Red™

Do right by your NAS and choose the drive purpose-built for NAS with an array of features to help preserve your data and maintain optimum performance. Take the following into consideration when choosing a hard drive for your NAS:

Compatibility: Unlike desktop drives, these 3.5" HDDs are specifically tested for compatibility with NAS systems for optimum performance.
Reliability: The always-on environment of a NAS or RAID is a hot one, and desktop drives aren't typically designed and tested under those conditions like WD Red™ is.
Error Recovery Controls: WD Red™ NAS hard drives are specifically designed with RAID error recovery control to help reduce failures within the NAS system.
Noise and Vibration Protection: Designed to operate solo, desktop drives typically offer little or no protection from the noise and vibration present in a multi-drive system. WD Red™ drives are designed to thrive in multi-bay NAS system environments.
Technical Specifications Capacity 4 TB Interface SATA Transfer Rate up to 180MB/s Form Factor 3.5 in Cache Size 256 MB Disk Speed (RPM) 5400rpm Compatibility Designed with SMR technology for workloads associated with personal and home office, such as storing, archiving and sharing, in RAID-optimized NAS systems with up to 8 bays. Recording Technology SMR Dimensions (L x W x H) 147mm x 101.6mm x 26.1mm

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In Stock: Next Day
£150.00
£180.00 Inc Vat
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Other Ranges Available
WD Desktop External Hard Drives
WD Desktop External Hard Drives
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WD Red Plus NAS Hard Drives
WD Red Plus NAS Hard Drives
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WD Red Pro NAS Hard Drives
WD Red Pro NAS Hard Drives
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WD Ultrastar - Enterprise Capacity HDD
WD Ultrastar - Enterprise Capacity HDD
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