Western Digital Red Plus WD40EFPX internal hard drive 4 TB 5400 RPM 256 MB 3.5" Serial ATA III

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In Stock
216 available
  • 4 TB
  • 3.5"
  • SATA 6 Gb/s
  • CMR
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Tackle intensity with a WD Red™ Hard Drive
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™ 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 NAS hard drives deliver exceptional performance for medium to large business customers 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.

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.

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™ Plus drive is engineered to tackle 24x7 environments.

Desktop Drives vs. WD Red™ Plus
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™ Plus drives are.
- Error Recovery Controls: WD Red™ Plus 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™ Plus drives are designed to thrive in multi-bay NAS system environments.
SKU WD40EFPX
EAN 0718037899794
Manufacturer Western Digital
In Stock Y
Hard drive
Component forNAS
HDD interface transfer rate6 Gbit/s
Workload rate limit180 TB/year
Mean time between failures (MTBF)1000000 h
Start/stop cycles600000
Hot-swapNo
HDD speed5400 RPM
HDD size3.5"
HDD capacity4 TB
Features
TypeHDD
Component forNAS
HDD interface transfer rate6 Gbit/s
Workload rate limit180 TB/year
InterfaceSerial ATA III
Mean time between failures (MTBF)1000000 h
Start/stop cycles600000
Native Command Queuing (NCQ)Yes
Hot-swapNo
HDD speed5400 RPM
HDD size3.5"
HDD capacity4 TB
Storage drive buffer size256 MB
Advanced Format (AF)Yes
24/7 operationYes
Noise level (idle)23 dB
Power
Power consumption (standby)0.3 W
Power consumption (idle)3.1 W
Operational conditions
Operating temperature (T-T)0 - 65 °C
Storage temperature (T-T)-40 - 70 °C
Operating shock70 G
Non-operating shock250 G
Technical details
Quantity per pack1 pc(s)
Compliance certificatesRoHS
InterfaceSerial ATA III
Mean time between failures (MTBF)1000000 h
Native Command Queuing (NCQ)Yes
Hot-swapNo
Weight & dimensions
Width101.6 mm
Weight570 g
Height26.1 mm
Depth147 mm
Packaging data
Quantity per pack1 pc(s)
Other features
InterfaceSerial ATA III
Native Command Queuing (NCQ)Yes
Compliance certificatesRoHS
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