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Silver 3.5 inch internal hard drive with circuit board visible underneath

Western Digital

Western Digital WD80EFZZ 8TB 3.5" internal hard drive

SKU CH-PJTP-BNCVY MPN WD80EFZZ

An 8 TB CMR hard drive with 5640 RPM, 128 MB cache and SATA 6.0 Gb/s, built for 24×7 NAS operation

  • Total capacity8 TB
  • Interface typeSATA 6.0Gb/s
  • Form factor3.5 in (8.89 cm)
  • Recording methodCMR
  • Rotational speed5,640 RPM
  • Cache memory128 MB

Capacity 8TB

  • CMR recording technology protects data integrity
  • 128 MB cache speeds up frequent file access
  • 5640 RPM balances throughput with low vibration
  • 3D Active Balance Plus reduces noise in multi-bay enclosures
  • NASware firmware ensures compatibility with up to 8-bay systems

8 TB NAS Hard Drive for Small Arrays

The WD Red Plus WD80EFZZ is an 8 TB 3.5 inch internal hard drive built for network-attached storage systems with up to eight drive bays. It uses conventional magnetic recording and spins at 5640 RPM with a 128 MB cache. The drive is designed for continuous 24x7 operation in small or medium business environments.

Check SATA Ports and Bay Count Before Ordering

Your NAS or server must provide a free SATA 6.0 Gb/s port and a 3.5 inch drive bay that accepts a 26.10 mm high unit. Verify the chassis supports at least one additional bay if you plan to expand later. The firmware is tuned for NAS workloads, so confirm the appliance runs a compatible operating system.

Fits Multi-Bay NAS Chassis with Standard SATA Power

The unit measures 147.00 mm long and 101.60 mm wide, matching the standard 3.5 inch form factor. It draws power from a regular SATA power connector and connects via a single SATA data cable. Using CMR technology avoids the write-performance penalties of shingled recording, leaving the array’s throughput consistent under mixed read and write loads.

How it compares

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

Price $197.99
Pricier than about 69% of the 4,938 comparable items (median $107.99).
Total capacity 8 TB
Higher than about 80% of the 2,372 comparable items (median 2 TB).
Price per TB $24.75 per TB
Cheaper than about 89% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameWD
Product lineRed Plus
Model nameWD80EFZZ
Total capacity8 TB
Recommended useFor NAS systems
Performance
Rotational speed5,640 RPM
Storage
Recording methodCMR
Cache memory128 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 weight0.70 kg
Package size152 × 102 × 25 mm

Other versions of this model

1 more in the same range

Questions about this item

Does the WD80EFZZ ship with mounting screws or a SATA cable, or must I buy them separately?

The drive is supplied in retail or OEM packaging that may vary; mounting screws and a SATA data cable are not included and must be purchased separately if your chassis or controller does not already provide them.

I see Red Plus spans 1‑14 TB — why choose the 8 TB version over the smaller or larger capacities?

The 8 TB model delivers 8 TB of CMR storage with a 180 TB/yr workload rating and 128 MB cache, fitting up to 8‑bay NAS units while balancing cost per terabyte and total capacity for small‑to‑medium business workloads.

What does the 5640 RPM figure mean for real‑world NAS performance?

At 5640 RPM the drive provides steady sequential throughput for RAID arrays and 24×7 operation, with the 128 MB cache absorbing burst writes, while the lower spindle speed reduces vibration and power draw in multi‑drive enclosures.

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