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More Product Information for the WD 4TB Red 5400 rpm SATA III 3.5" Internal NAS HDD (WD40EFRX)
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Tackle Intensity with WD Red™ Plus
Packed with power to handle the small- to medium-sized business NAS environments and increased workloads for SOHO customers, WD Red™ Plus is ideal for archiving and sharing, as well as RAID array rebuilding on systems using ZFS and other file systems. Built and tested for up to 8-bay NAS systems, these drives give you the flexibility, versatility, and confidence in storing and sharing your precious home and work files.

For Small or Medium Businesses
Stream, backup, share, and organize your digital content with a NAS and WD Red™ Plus drives designed to effortlessly share content with the devices at your home or business. NASware™ 3.0 technology increases your drives\' compatibility with your existing network and devices. For larger businesses with up to 24 bays, count on WD Red™ Pro drives to deliver exceptional performance.

Exclusive NASware 3.0
Not just any drive will do. Get up to 112TB of capacity in your 8-bay NAS system and with Western Digital\'s exclusive NASware 3.0 technology, you can optimize each and every drive. Built into every WD Red™ Plus hard drive, NASware 3.0\'s advanced technology improves storage performance by increasing compatibility, integration, upgradeability, and reliability.

Built for Optimum NAS Compatibility
WD Red™ Plus drives with NASware™ technology takes the guesswork out of selecting a drive. Optimized for NAS systems, our unique algorithm balances performance and reliability in NAS and RAID environments. Simply put, a WD Red™ Plus drive is one of the most compatible drives available for NAS enclosures. But don\'t take our word for it. WD Red™ PLUS drives are a reflection of extensive NAS partner technology engagement and compatibility-testing.

WD Red™ Pro for Big Business
If you\'re looking for heavy duty performance for NAS, WD Red™ Pro drives deliver exceptional performance for the medium to large business customer with extreme demands. For NAS environments with 9 to 24 bays, WD Red™ Pro drives deliver uncompromising performance and unwavering assurance backed by a 5-year limited warranty.

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Specifications

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General Information
ManufacturerWestern Digital Corporation
Manufacturer Part NumberWD40EFRX
Manufacturer Website Addresshttp://www.wdc.com
Brand NameWD
Product LineRed Plus
Product ModelWD40EFRX
Product NameRed Plus 4TB NAS Hard Drive
Product TypeHard Drive
Technical Information
Storage Capacity4 TB
FeaturesIntelliPower
Drive Performance
Maximum External Data Transfer Rate6144 MB/s (48 Gbit/s)
Spindle Speed (rpm)5400
Buffer64 MB
Endurance (TBW)180 TB
Network & Communication
Wireless LANNo
Interfaces/Ports
Drive InterfaceSATA
Drive Interface StandardSATA/600
Power Description
Operating Power Consumption4.50 W
Physical Characteristics
Drive TypeInternal
Form Factor3.5"
Height1"
Width4"
Depth5.8"
Weight (Approximate)1.50 lb
Miscellaneous
Environmentally FriendlyYes
Environmental CertificationWEEE
Environmental CertificationRoHS
Environmental CertificationChina RoHS
Device SupportedStorage System
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