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Silver 3.5 inch internal hard drive with green label

Western Digital

Western Digital WD30EFZX 3TB 5400 RPM 128MB CMR SATA 3.5" internal hard drive

SKU CH-2BR5-CTQCF MPN WD30EFZX

A 3.5 inch SATA drive with 3TB capacity, 5400 RPM, 128MB cache and CMR technology built for 24x7 NAS workloads up to 180 TB per year

  • InterfaceSATA 6.0Gb/s
  • Capacity3TB
  • NAND Flash Memory TypeHard Drive
  • Recording TechnologyCMR
  • RPM5400 RPM
  • Cache128MB

Capacity 3TB

Show 4 more configurations
  • Designed for NAS workloads up to 180 TB/yr
  • CMR recording technology for consistent RAID performance
  • 128 MB cache accelerates data access
  • SATA 6.0 Gb/s interface for broad compatibility
  • Built and tested for 24×7 operation in up to 8-bay enclosures

3TB CMR drive for NAS

The WD Red Plus WD30EFZX is a 3TB 3.5-inch hard drive built for small- to medium-business NAS enclosures. It uses conventional magnetic recording and a SATA 6.0Gb/s interface to deliver consistent throughput in multi-bay systems. The 128MB cache helps sustain performance during concurrent read and write operations. It is rated for 24x7 operation in up to eight-bay configurations.

Upgrade from smaller or archive-class drives

Replace lower-capacity drives or shingled-recording models when your array needs more raw space and predictable rebuild behaviour. The 180 TB/yr workload rating and CMR technology make the step worthwhile for RAID sets that see frequent parity rebuilds or ZFS resilvering. Drives limited to lighter duty cycles or fewer supported bays will not match this endurance profile.

Buyers needing more than eight bays

This model is not for deployments that exceed eight drive bays or require the higher workload rating of the Red Pro line. Systems that demand 24-bay support or sustained write intensity beyond 180 TB/yr should look elsewhere. Verify that your NAS firmware lists this drive as compatible before ordering.

Highlights

  • Designed for NAS workloads up to 180 TB/yr
  • CMR recording technology for consistent RAID performance
  • 128 MB cache accelerates data access
  • SATA 6.0 Gb/s interface for broad compatibility
  • Built and tested for 24×7 operation in up to 8-bay enclosures

Specifications

BrandWD
SeriesRed Plus
ModelWD30EFZX
InterfaceSATA 6.0Gb/s
Capacity3TB
NAND Flash Memory TypeHard Drive
Recording TechnologyCMR
RPM5400 RPM
Cache128MB
FeaturesTackle Intensity with WD Red Plus
Packed with power to handle the small- to medium-sized business NAS environments and increased workloads for SOHO customers, WD Red Plus is ideal for archiving and sharing, as well as RAID array rebuilding on systems using ZFS and other file systems. Built and tested for up to 8-bay NAS systems, these drives give you the flexibility, versatility, and confidence in storing and sharing your precious home and work files.
For Small or Medium Businesses
Stream, backup, share, and organize your digital content with a NAS and WD Red Plus drives designed to
UsageFor NAS systems
Form Factor3.5"
Height (maximum)26.10mm
Width (maximum)101.60mm
Length (maximum)147.00mm
Shipping weight0.57 kg
Package size146 × 102 × 24 mm

Other versions of this model

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Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

Will the 147.00mm length and 26.10mm height fit my 3.5-inch NAS bay?

Yes, the drive measures 147.00mm long, 101.60mm wide and 26.10mm high, matching the standard 3.5-inch form factor used in most NAS enclosures.

Does the SATA 6.0Gb/s interface require any jumper or driver setup during installation?

No jumper or driver is needed; connect the SATA data and power cables, and the NAS firmware will recognise the drive automatically.

What workload rating should I expect before planning a replacement?

The drive is rated for up to 180 TB per year, so plan a replacement once your annual written data approaches that figure.

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