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Silver 3.5 inch bare SATA hard drive with exposed circuit board

Western Digital

Western Digital WD30EFRX 3TB 5400 RPM 64MB SATA 3.5" internal hard drive

SKU CH-S0X5-70WFG MPN WD30EFRX

A 3TB 3.5-inch SATA drive with 64MB cache and 5400 RPM class for NAS systems supporting up to 8 bays and 180 TB/yr workload rate

  • Total capacity3 TB
  • Interface typeSATA 6.0Gb/s
  • Form factor3.5 in (8.89 cm)
  • Packaging typeBare Drive
  • Rotational speed5,400 RPM
  • Cache memory64 MB
  • Optimised for 24x7 NAS operation with NASware firmware
  • Handles up to 180 TB per year workload rate
  • CMR technology stores 3TB on a 3.5 inch drive
  • 64MB cache and SATA 6.0Gb/s deliver 145 MB/s typical transfer
  • Low 4.4W active and 0.6W standby power draw

NAS-focused 3 TB CMR drive

The WD Red Plus WD30EFRX is a 3.5 inch hard drive built for home and small office NAS enclosures. It uses conventional magnetic recording and a SATA 6.0Gb/s interface to deliver 3 TB of storage in a 24x7 environment. The firmware is tuned for multi-bay compatibility and continuous operation.

Sustained 180 TB per year workload

NASware firmware manages error recovery and power balance during long write sessions typical of RAID rebuilds or backup jobs. The 5400 RPM class motor and 64 MB cache maintain a typical host transfer rate of 145 MB/s without the thermal spikes seen in desktop drives. Workload rating reaches 180 TB per year.

Low power draw and standard mounting

Read and write power sits at 4.4 watts while standby drops to 0.6 watt, reducing heat in crowded chassis. The 26.10 mm height fits any standard 3.5 inch bay using common SATA data and power connectors. Systems older than Windows Vista or OS X 10.4 may require partitioning to recognise the full capacity.

How it compares

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

Price $96.99
Typical for this category: the median of 4,938 items is $107.99.
Total capacity 3 TB
Higher than about 60% of the 2,372 comparable items (median 2 TB).
Price per TB $32.33 per TB
Cheaper than about 80% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameWD
Product lineRed Plus
Model nameWD30EFRX
Total capacity3 TB
Recommended useFor NAS systems
Performance
Rotational speed5,400 RPM
Storage
Cache memory64 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 weight0.66 kg
Package size151 × 103 × 28 mm

Questions about this item

How much heat and power does the 3 TB WD Red Plus produce when running 24×7 in a NAS?

The drive draws 4.4 watts during read and write activity and 0.6 watt in standby, keeping heat output low for continuous operation.

What host interface and bay count does the WD30EFRX require to work in my enclosure?

It connects via a SATA 6.0 Gb/s port and is validated for systems with up to 8 drive bays.

Will this 5400 RPM CMR drive work reliably alongside older SATA drives in the same NAS?

Yes — NASware firmware and the 180 TB/yr workload rating are designed for mixed-drive 24×7 environments.

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