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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

  • InterfaceSATA 6.0Gb/s
  • Capacity8TB
  • Recording TechnologyCMR
  • RPM5640 RPM
  • Cache128MB
  • Features3D Active Balance Plus Our enhanced dual-plane balance contr

Options 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.

Highlights

  • 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

Specifications

BrandWD
SeriesRed Plus
ModelWD80EFZZ
InterfaceSATA 6.0Gb/s
Capacity8TB
Recording TechnologyCMR
RPM5640 RPM
Cache128MB
Features3D Active Balance Plus
Our enhanced dual-plane balance control technology significantly improves the overall drive performance and reliability. Hard drives that are not properly balanced may cause excessive vibration and noise in a multi-drive system, reduce the hard drive life span, and degrade the performance over time.
24x7 Environment
Since your NAS system is always on, a reliable drive is essential. With an MTBF of up to 1 million hours, the WD Red Plus drive is engineered to tackle 24x7 environments.
Desktop Drives vs. WD Red Plus
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UsageFor NAS systems
Form Factor3.5"
Height (maximum)26.10mm
Width (maximum)101.60mm
Length (maximum)147.00mm
Shipping weight0.70 kg
Package size152 × 102 × 25 mm

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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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