What is the spindle speed and cache size of WD Red Pro WD4005FFBX?

The drive operates at 7200 RPM with a 256MB cache, enabling sustained transfers up to 217MB/s via SATA 6Gb/s. This combination supports high-performance in 24x7 NAS environments with multi-user access and RAID configurations.

Is this drive suitable for enterprise NAS systems?

Yes, designed for commercial and enterprise NAS with unlimited bays, rated for 550TB/year workloads and 2.5 million hours MTBF. Features NASware firmware and CMR technology for reliable operation in rackmount or tower setups up to 24 bays.

What are the physical dimensions and form factor?

3.5-inch internal form factor with dimensions 5.79 inches length, 4 inches width, 1.03 inches height. Fits standard NAS bays and includes multi-axis shock sensors for vibration-prone environments.

What reliability metrics does it offer?

MTBF of 2.5 million hours, <1 in 10^15 non-recoverable errors, and 600,000 load/unload cycles. Enhanced by 3D Active Balance Plus and extended thermal testing for 24x7 durability in multi-bay RAID.

Does it use CMR or SMR recording?

Utilizes Conventional Magnetic Recording (CMR) for consistent performance without SMR write penalties. Ideal for random write-heavy NAS workloads in enterprise settings.

What interfaces are supported?

SATA 6Gb/s (SATA III/600) interface ensures compatibility with modern NAS systems. Provides buffer-to-host speeds up to 6Gb/s for efficient data handling in high-density storage arrays.

WD4005FFBX - Western Digital WD4005FFBX 4TB 7200RPM SATA 3.5" NAS HDD

Name: Western Digital WD4005FFBX 4TB 7200RPM SATA 3.5" NAS HDD
Brand: Western Digital
SKU: WD4005FFBX

WD4005FFBX - Western Digital WD4005FFBX 4TB 7200RPM SATA 3.5" NAS HDD | US IT Hardware

Product overview

The Western Digital WD Red Pro WD4005FFBX is a 4TB 3.5-inch SATA 6Gb/s NAS hard drive designed for enterprise-grade performance. Operating at 7200 RPM with a 256MB cache, it delivers reliable data transfers in high-intensity 24x7 multi-user environments. Featuring Conventional Magnetic Recording (CMR) technology, it supports RAID-optimized NAS systems with unlimited bays. Key specs include dimensions of 5.79 x 4 x 1.03 inches and an MTBF of up to 2.5 million hours. Rated for 550TB/year workloads, it ensures scalability for commercial NAS setups. Ideal for creative professionals, SMBs, and enterprises needing robust storage for data sharing and collaboration. Its multi-axis shock sensor and NASware firmware enhance compatibility and vibration tolerance in dense rackmount configurations. This drive provides consistent uptime and data integrity for demanding applications.

4TB CMR at 7200 RPM, 256MB cache for NAS workloads
SATA 6Gb/s interface, up to 217MB/s transfers
2.5M hours MTBF, 550TB/year rating
3.5-inch form for unlimited RAID bays
Vibration protection, 24x7 multi-user optimized
NASware firmware for compatibility

Expedited and overnight shipping options are available at checkout, priced by destination and service.
Purchase orders accepted from qualified institutions.
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 #	WD4005FFBX
Brand	Western Digital
Condition	New
Model	WD4005FFBX
Technology	Conventional Magnetic Recording (CMR)
Product Line	WD Red Pro
Product Type	Network Hard Drive; NAS Hard Drive
Spindle Speed	7200 RPM
Workload Rate	550TB/year
Device Supported	NAS systems; 24x7 multi-user commercial and enterprise NAS environments
Storage Capacity	4 TB

Compatible systems

WD Red Pro 4TB is compatible with enterprise and commercial NAS systems supporting 3.5-inch SATA drives

Generic NAS
Model: Multi-bay NAS systems
Form factor: 3.5 inch SATA bay
Generation: All current
Designed for high-intensity 24/7 workloads in commercial and enterprise NAS environments

Best for

Enterprise NAS
Optimized for 24x7 multi-user NAS environments with 7200 RPM speed and 256MB cache, handling high-intensity workloads up to 550TB/year.
RAID Systems
Supports unlimited drive bays in RAID-optimized NAS with CMR technology and high MTBF for reliable multi-bay performance.
Data Centers
Delivers 4TB capacity at SATA 6Gb/s with vibration protection, ideal for rackmount storage in commercial setups.
SMB Storage
Provides scalable 7200 RPM performance for medium businesses sharing large data volumes in collaborative NAS.

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4TB SATA Hard Drives 7200 RPM SATA Hard Drives 3.5-inch SATA Hard Drives Enterprise SATA Hard Drives

Height	26.1 mm
Weight	680 g
Dimensions	Length: 5.79 inches; Width: 4 inches; Height: 1.03 inches
Buffer Size	256 MB

Western Digital WD4005FFBX 4TB 7200RPM SATA 3.5" NAS HDD

Product overview

Featuring

Compatible systems

Best for

Frequently asked questions

Details

Shipping, warranty & returns

Customer reviews

Power Consumption

Physical Characteristics

Reliability

Interface/Ports

Drive Performance

Weight & Dimensions

Western Digital WD4005FFBX 4TB 7200RPM SATA 3.5" NAS HDD

Product overview

Featuring

Compatible systems

Best for

Frequently asked questions

Details

Shipping, warranty & returns

Customer reviews

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Power Consumption

Physical Characteristics

Reliability

Interface/Ports

Drive Performance

Weight & Dimensions