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Silver 3.5 inch bare hard drive with exposed circuit board

Western Digital

Western Digital WD Black WD4005FZBX 4TB 7200 RPM 256MB SATA 3.5" internal hard drive

SKU CH-QA92-ANS0W MPN WD4005FZBX

4 TB desktop drive spins at 7 200 RPM with 256 MB cache over SATA 6.0 Gb/s

  • Total capacity4 TB
  • Interface typeSATA 6.0Gb/s
  • Form factor3.5 in (8.89 cm)
  • Packaging typeBare Drive
  • Flash memory typeHard Drive
  • Recording methodCMR
  • 7200 RPM spindle speed delivers fast sequential throughput
  • 256 MB DRAM cache accelerates read performance
  • CMR recording technology ensures consistent write speeds
  • 5 inch form factor fits standard desktop bays
  • SATA 6.0 Gb/s interface provides broad motherboard compatibility

WD Black 4TB desktop drive

The WD Black WD4005FZBX is a 4TB 3.5-inch internal hard drive built for desktop PCs that need high-capacity storage with responsive performance. It targets creative professionals, gamers and system builders who work with large media libraries or game installations and want a drive that can sustain heavy workloads.

SATA 6.0Gb/s interface with CMR recording

The drive connects through a SATA 6.0Gb/s interface and uses conventional magnetic recording (CMR) technology, which maintains consistent write speeds without the performance dips associated with shingled recording. This specification is the primary factor for buyers who need reliable sustained throughput for video editing, rendering or large file transfers.

Standard 3.5-inch bay installation

The unit fits a standard 3.5-inch drive bay with maximum dimensions of 147.00mm length, 101.60mm width and 26.10mm height, and it ships as a bare drive without cables or mounting brackets. Installation is straightforward for anyone familiar with desktop assembly; the most common issue is forgetting to connect both the SATA data and power cables or leaving the drive unsecured in the bay, which can cause vibration noise.

How it compares

Measured against everything we stock in 3.5-Inch Internal Desktop HDDs, at today’s prices. Recalculated every night.

Price $145.99
Pricier than about 59% of the 4,938 comparable items (median $107.99).
Total capacity 4 TB
Higher than about 70% of the 2,372 comparable items (median 2 TB).
Price per TB $36.50 per TB
Cheaper than about 74% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameWD
Product lineBlack
Model nameWD4005FZBX
Total capacity4 TB
Recommended useGaming Hard Drives
Performance
Rotational speed7,200 RPM
Storage
Flash memory typeHard Drive
Recording methodCMR
Cache memory256 MB
Ports & slots
Interface typeSATA 6.0Gb/s
Size & build
Form factor3.5 in (8.89 cm)
Max height26.1 mm
Maximum width101.6 mm
Maximum length147 mm
Shipping weight0.82 kg
Package size224 × 152 × 74 mm

Questions about this item

How does the 7200 RPM spindle speed affect real-world load times?

The 7200 RPM rotation reduces rotational latency compared to slower drives, so large game levels, video projectiles and photo libraries open noticeably faster on this 4 TB model.

What does the SATA 6.0Gb/s interface limit in daily use?

The SATA 6.0Gb/s link sets the maximum data rate between the drive and the motherboard, so sustained transfers cannot exceed the bus ceiling even though the 256 MB cache absorbs bursts.

Will the 3.5-inch form factor fit my case’s drive bay?

The drive measures 147.00 mm long, 101.60 mm wide and 26.10 mm high, matching the standard 3.5-inch desktop bay and screw-hole pattern used in most tower cases.

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