WD40EFZZ - Western Digital WD40EFZZ Red Plus 4TB 3.5" SATA HDD

Name: Western Digital WD40EFZZ Red Plus 4TB 3.5" SATA HDD
Brand: Western Digital
SKU: WD40EFZZ
Price: 310 USD
Availability: InStock

WD40EFZZ - Western Digital WD40EFZZ Red Plus 4TB 3.5" SATA HDD | US IT Hardware

Product overview

The WD Red Plus 4TB (WD40EFZZ) is a purpose-built NAS hard drive designed for small to medium business environments and power users operating 24x7 systems. Featuring CMR technology, SATA 6Gb/s interface, and 5400 RPM spindle speed, this drive delivers up to 175MB/s transfer rates with 256MB cache. Rated for 180TB/year workload capacity and 1M hours MTBF, it supports RAID-optimized NAS systems with up to 8 bays. The drive incorporates NASware 3.0 firmware for enhanced compatibility, reduced noise, and power efficiency. Operating temperature range of 0-65°C ensures reliable performance in diverse environments. Backed by a 3-year limited warranty, the WD Red Plus 4TB provides enterprise-grade reliability for mission-critical data storage and protection applications.

4TB capacity with CMR technology for reliable RAID storage
180TB/year workload rating for 24x7 NAS operation
175MB/s transfer rate with SATA 6Gb/s interface
1M hours MTBF with NASware 3.0 firmware optimization
Supports up to 8-bay NAS systems with Advanced Format
3-year limited warranty with 3D Active Balance Plus

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Refunds within 14 days and replacements within 30 days of delivery with an RMA (25% restocking fee on customer-initiated returns), and every part carries our Standard 30-Day Warranty - see our return policy or contact US IT Hardware.

Featuring

Manufacturer part #	WD40EFZZ
Brand	Western Digital
Condition	New
Model	WD40EFZZ
Length	5.787 inches / 147 mm (max)
Technology	CMR (Conventional Magnetic Recording)
Product Line	WD Red Plus
Product Type	Internal Hard Drive (HDD)
Drive Purpose	NAS systems operating 24x7; supports up to 180 TB/yr workload rate
Formatted Capacity	4TB
Advanced Format (AF)	Yes

Compatible systems

WD40EFZZ compatible with standard 3.5-inch SATA NAS systems supporting 24/7 operation

Generic NAS Systems
Model: 1-8 bay NAS enclosures
Form factor: 3.5-inch SATA
Generation: All
Designed for 24/7 NAS operation; supports up to 180 TB/yr workload rate

Best for

NAS Systems
Optimized for RAID-configured NAS systems with up to 8 bays, supporting 24x7 operation with 180TB/year workload rating and NASware 3.0 firmware for enhanced system compatibility.
Small Business Storage
Designed for small to medium business environments requiring reliable data storage and protection, with 1M hours MTBF and 3-year warranty for mission-critical applications.
RAID Arrays
CMR technology and Advanced Format support enable efficient RAID deployment with reduced vibration through 3D Active Balance Plus technology, minimizing wear on internal components.
Home Office/Power Users
Suitable for power users and home offices requiring high-capacity storage with energy-efficient 5400 RPM operation and low power consumption during idle states.
Data Protection
Supports growing data storage needs with 4TB capacity, 175MB/s transfer rates, and error recovery tools via SMART command set for reliable data access and protection.

Details

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4TB SATA Hard Drives 3.5-inch SATA Hard Drives Enterprise SATA Hard Drives 4TB Enterprise Hard Drives

Native Command Queuing	Yes

Form Factor	3.5-inch

Interface Type	SATA 6 Gb/s

Interface Transfer Rate	Up to 180 MB/s

Width	4 inches / 101.6 mm (±0.01 in)

RoHS Compliant	Yes

Storage Temperature	-40 to 70°C
Operating Temperature	0 to 65°C

Frequently asked questions

What is the maximum workload capacity for the WD Red Plus 4TB?

The WD Red Plus 4TB is rated for 180TB/year workload capacity, supporting continuous 24x7 operation in NAS environments. This rating ensures reliable performance under sustained usage patterns typical in small to medium business deployments with predictable performance characteristics.

How many NAS bays does this drive support?

The WD Red Plus 4TB is optimized for RAID-configured NAS systems with up to 8 bays. This capacity supports scalable storage deployments for growing business needs while maintaining drive reliability and system performance across multiple simultaneous drive operations.

What is the data transfer rate of the WD40EFZZ?

The WD Red Plus 4TB delivers up to 175MB/s transfer rate via SATA 6Gb/s interface. This performance level supports efficient multi-user access and large file operations in business NAS environments without creating system bottlenecks or performance degradation.

What firmware does this drive include?

The WD Red Plus 4TB features NASware 3.0 firmware, which optimizes NAS system compatibility, reduces power consumption, and enables SMART monitoring for predictive maintenance. This advanced firmware improves overall system reliability and reduces operational costs through proactive maintenance capabilities.

What is the expected lifespan of the WD Red Plus 4TB?

With 1M hours MTBF (Mean Time Between Failures), the WD Red Plus 4TB has an expected operational lifespan of approximately 11+ years under rated conditions. Combined with 3D Active Balance Plus vibration reduction technology, this ensures extended reliability in multi-bay NAS configurations.

Is the WD Red Plus 4TB suitable for RAID arrays?

Yes, the WD Red Plus 4TB is specifically designed for RAID-optimized NAS systems. CMR technology, Advanced Format support, and NASware firmware provide enhanced compatibility and reliability for RAID deployments, while 180TB/year workload rating ensures sustained performance.

What operating temperature range does this drive support?

The WD Red Plus 4TB operates reliably between 0-65°C, with storage temperature range of -40 to 70°C. This wide operating envelope ensures compatibility with diverse business environments and data center conditions without thermal-related performance degradation.

Western Digital WD40EFZZ Red Plus 4TB 3.5" SATA HDD

Product overview

Featuring

Compatible systems

Best for

Details

Shipping, warranty & returns

Customer reviews

Physical Characteristics

Interface/Ports

Drive Performance

Weight & Dimensions

Compliance Standards

Environmental Condition

Frequently asked questions

Western Digital WD40EFZZ Red Plus 4TB 3.5" SATA HDD

Product overview

Featuring

Compatible systems

Best for

Details

Shipping, warranty & returns

Customer reviews

Shop these collections

Physical Characteristics

Interface/Ports

Drive Performance

Weight & Dimensions

Compliance Standards

Environmental Condition

Frequently asked questions