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Silver 3.5-inch bare SATA hard drive, rectangular metal casing with label and circuit board visible

Western Digital

Western Digital WD100EFAX 10TB 5400 RPM 256MB SATA 6.0Gb/s 3.5" internal hard drive

SKU CH-QADC-311XQ MPN WD100EFAX

10 TB NAS hard drive spins at 5400 RPM with 256 MB cache and SATA 6.0 Gb/s

  • PackagingBare Drive
  • InterfaceSATA 6.0Gb/s
  • Capacity10TB
  • RPM5400 RPM
  • Cache256MB
  • FeaturesThe WD Red family just got bigger Our formula of success has
  • 10TB capacity stores large media libraries and backups
  • 5400 RPM spindle balances throughput with quiet 24×7 operation
  • 256MB cache accelerates frequent read and write requests
  • NASware 3.0 firmware optimises compatibility with 1‑8 bay NAS systems
  • 180TB per year workload rating supports heavy multi‑user environments

10TB NAS hard drive for 1–8 bay systems

This Western Digital WD Red drive provides 10TB of storage for network-attached storage enclosures with up to eight bays. It operates at 5400 RPM with a 256MB cache over a SATA 6.0Gb/s interface. The bare drive is built for continuous 24×7 operation in small and home office NAS environments.

NASware 3.0 firmware optimises multi-bay

The bundled NASware 3.0 firmware extends official support to systems with six to eight bays, improving drive compatibility and reliability across the array. It enables a total raw capacity of 48TB when eight drives are installed. The firmware is tuned for RAID workloads and the 180TB per year workload rating.

5400 RPM spindle speed defines sustained throughput

The 5400 RPM rotation rate sets the drive's sequential transfer ceiling and acoustic profile, making it suitable for bulk storage rather than low-latency transactional workloads. Buyers who need higher random IOPS or faster single-stream throughput should consider drives with a faster spindle speed.

Highlights

  • 10TB capacity stores large media libraries and backups
  • 5400 RPM spindle balances throughput with quiet 24×7 operation
  • 256MB cache accelerates frequent read and write requests
  • NASware 3.0 firmware optimises compatibility with 1‑8 bay NAS systems
  • 180TB per year workload rating supports heavy multi‑user environments

Specifications

BrandWD
SeriesRed
ModelWD100EFAX
PackagingBare Drive
InterfaceSATA 6.0Gb/s
Capacity10TB
RPM5400 RPM
Cache256MB
FeaturesThe WD Red family just got bigger
Our formula of success has led to the growth of WD Red into the highest capacities possible. Available up to 6TB, WD offers an even broader, more comprehensive portfolio of NAS solutions for our customers with WD Red and WD Red Pro spanning a total of 1 to 16 bays.
NASware grows to 3.0
Built off of our determination to deliver the best NAS experience, NASware 3.0 extends our promise by further optimizing WD Red for the NAS environment with added support for 6 to 8 NAS bays. WD Red now supports small NAS systems from 1 to 8 bays thanks to NASware 3.0,
UsageFor NAS systems
Form Factor3.5"
Height (maximum)1.03"
Width (maximum)4.00"
Length (maximum)5.79"
Shipping weight0.77 kg
Package size221 × 155 × 76 mm

Questions about this item

Will the 256MB cache need any maintenance or replacement during the drive's life?

The 256MB cache is built into the drive and requires no separate maintenance or replacement.

What limit appears first under sustained use, the 180TB/yr workload rate or the 8-bay NASware 3.0 support?

The 180TB/yr workload rate is the sustained-use limit; NASware 3.0 supports up to 8 bays for compatibility.

How much noise, heat or power does the 5400 RPM drive produce when running all day in a NAS?

The 5400 RPM speed keeps noise, heat and power lower than faster drives, suited for 24x7 NAS operation.

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