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3.5-inch bare hard drive, silver aluminium top, green label, circuit board visible underneath

Western Digital

Western Digital WD140PURZ 14TB 3.5" SATA 7200rpm 512MB internal hard drive

SKU CH-272R-X82PZ MPN WD140PURZ

A 14 TB 3.5-inch SATA hard drive spinning at 7200 rpm with 512 MB cache, built for continuous video-surveillance recording

  • Total capacity14 TB
  • Interface typeSATA 6.0Gb/s
  • Form factor3.5 in (8.89 cm)
  • Packaging typeBare Drive
  • Rotational speed7,200 RPM
  • Cache memory512 MB

Model 14TB 7200RPM

  • Built for continuous video recording with 7200 RPM spindle speed
  • 14 TB capacity stores weeks of high-resolution surveillance footage
  • 512 MB cache smooths multi-stream write workloads
  • SATA 6.0 Gb/s interface fits standard DVR and NVR bays
  • 5 inch form factor mounts in any desktop drive cage

Purpose-built surveillance storage

The WD Purple WD140PURZ is a 14TB 3.5 inch internal hard drive designed for continuous video recording workloads. It uses a SATA 6.0Gb/s interface and spins at 7200 RPM with a 512MB cache to handle multiple simultaneous camera streams. The bare-drive packaging suits system integrators and DIY builders expanding or replacing storage in network video recorders.

Ideal for NVR expansion, not for general desktop use

This drive targets installers and owners of surveillance systems that write large sequential data around the clock. It is not suited for users seeking a primary operating-system drive, low-noise desktop storage, or portable external backup, where solid-state or lower-RPM drives are more appropriate.

SATA 6.0Gb/s interface determines host compatibility

The drive connects via a standard SATA 6.0Gb/s port, so the host controller or NVR must provide a matching SATA data and power connection. No other interface or protocol is supported, and the 3.5 inch form factor requires a compatible drive bay or enclosure.

How it compares

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

Price $232.99
Pricier than about 74% of the 4,938 comparable items (median $107.99).
Total capacity 14 TB
Higher than about 91% of the 2,372 comparable items (median 2 TB).
Price per TB $16.64 per TB
Cheaper than about 94% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameWestern Digital
Product linePurple
Model nameWD140PURZ
Total capacity14 TB
Recommended useFor Video Surveillance
Performance
Rotational speed7,200 RPM
Mean latency6Gb/s
Storage
Cache memory512 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 weight0.79 kg
Package size229 × 152 × 76 mm

Other versions of this model

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Questions about this item

How does the 14TB capacity translate to usable space once the drive is formatted in a surveillance system?

The drive provides 14TB of raw capacity; after formatting the operating system will report slightly less, but the full 14TB is available for continuous video recording workloads.

What does the SATA 6.0Gb/s interface mean for real-world throughput in a 7200rpm surveillance drive?

The SATA 6.0Gb/s link caps the theoretical maximum at 6.0Gb/s, while the 7200rpm platters and 512MB cache deliver sustained sequential speeds suited to multiple high-definition camera streams.

Will this 3.5-inch drive fit a standard surveillance NVR bay with the listed dimensions?

The drive measures 147.00mm long, 101.60mm wide and 26.10mm high, matching the standard 3.5-inch form factor used in most NVR and desktop drive bays.

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