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Silver 3.5 inch bare hard drive with green circuit board visible on underside

Western Digital

Western Digital WD80EFAX 8TB 3.5" SATA 5400 RPM 256MB internal hard drive

SKU CH-4Z07-S2S28 MPN WD80EFAX

8 TB 3.5″ SATA drive with 5400 RPM, 256 MB cache and NASware firmware for up to 8-bay NAS systems

  • Total capacity8 TB
  • Interface typeSATA 6.0Gb/s
  • Form factor3.5 in (8.89 cm)
  • Packaging typeBare Drive
  • Flash memory capacity8 GB
  • Rotational speed5,400 RPM
  • Built for 24x7 NAS operation with NASware firmware
  • 8TB capacity supports up to 14TB range for scalable storage
  • 256MB cache and 5400 RPM class deliver steady throughput
  • 180 TB/yr workload rate handles heavy multi-bay demands
  • 5-inch SATA 6.0Gb/s interface fits standard desktop bays

WD Red Plus 8 TB NAS drive

The Western Digital WD80EFAX is an 8 TB 3.5 inch internal hard drive built for network-attached storage. It uses a SATA 6.0 Gb/s interface, spins at a 5400 RPM performance class and includes 256 MB of cache. The drive employs conventional magnetic recording and NASware firmware for compatibility in multi-bay enclosures.

Suited for small business NAS up to eight bays

This drive fits small or medium business NAS systems that run continuously and need up to 180 TB per year workload capacity. It is not intended for desktop boot drives or high-performance workstations that demand faster rotational speeds or lower latency. Builders needing a different interface must choose another drive type.

180 TB per year workload rating

The single specification that decides suitability is the 180 TB per year workload rate. If your NAS workload stays within this annual limit across up to eight bays, the drive matches the requirement; if the expected write volume exceeds it, a higher-rated drive is needed.

How it compares

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

Price $171.99
Pricier than about 64% 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 $21.50 per TB
Cheaper than about 91% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameWD
Product lineRed Plus
Model nameWD80EFAX
Part numberWD80EFAX
Total capacity8 TB
Recommended useFor NAS systems
Performance
Rotational speed5,400 RPM
Memory
Flash memory capacity8 GB
Storage
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 weight0.70 kg
Package size147 × 102 × 26 mm

Questions about this item

What SATA port and bay size does the WD80EFAX 8TB 3.5" drive require?

The drive connects through a SATA 6.0Gb/s interface and fits a standard 3.5-inch bay with maximum dimensions of 147.00mm length, 101.60mm width and 26.10mm height.

Can the WD80EFAX 8TB 5400 RPM drive operate in a NAS that supports up to 8 bays?

Yes, the drive is built for NAS systems with up to 8 bays and carries NASware firmware for compatibility in 24x7 environments.

How can I verify the WD80EFAX is performing within its 180 TB/yr workload rating after installation?

Monitor the drive's SMART attributes for total bytes written and compare the accumulated figure against the 180 TB annual workload limit over time.

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