WD Red 4TB 64MB 3.5 SATA HDD

Expand your NAS storage solutions with the Western Digital Red 4TB 3.5″ SATA NAS Hard Drive. It features 4TB of storage, a 3.5″ form factor, SATA interface and an internal transfer rate of 150 MB/s.

SKU: WD40EFRX Categories:

The Western Digital Red 4TB 3.5″ SATA NAS Hard Drive is designed specifically for NAS systems that have 1 to 5 drive bays in 3.5 inch form factors. The drives are designed and extensively tested for compatibility in the unique 24×7 operating environment and for the demanding system requirements of home and small office NAS.

Our formula of success has led growth of WD Red into higher capacities and expansion into new 2.5 inch solutions. We now offer a broader, more comprehensive portfolio of NAS hard drives for our customers. It is not just about NAS drives, it is REDvolutionary

Every component, line of code, and product decision was built on our passion and determination to deliver the best NAS experience. The next generation of WD Red hard drives delivers on this promise with massive capacity and NASware 2.0, which further improves drive reliability and protects your data in the event of a power loss or disruption.

Our exclusive technology, NASware 2.0, makes WD Red thrive in the demanding small NAS environment. By adding WD Red to your NAS system, not only is everything more efficient and reliable, you can better protect your data investment.

In all of our cultures around the world, first impressions are what leave a mark. With superior technology that is driven to impress, WD Red is a reflection of the most extensive NAS partner compatibility testing list that is available on the market. That means when you buy a NAS enclosure, you can trust that WD Red will be the most compatible drive available. Our pride is in our product and our vision is shared with our customers.

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. WD Red is designed specifically for home and small office NAS systems and PCs with RAID.


  • Expand NAS solutions
  • SATA 6Gb/s interface
  • 64 MB Cache
  • Rotational Speed: IntelliPower
  • Internal transfer rate 150 MB/s
  • 3 year limited warranty


  • Capacity: 4 TB
  • Cache Size: 64 MB
  • Disk Speed (RPM): 5400rpm
  • Interface: SATA
  • Cache Size (MB): 64MB
  • Transfer Rate: up to 150 MB/s
  • Dimensions: 14.7 x 10.2 x 2.6 cm


  • Western Digital Red 4TB 3.5″ SATA NAS Hard Drive – Silver x1