WD Red 4TB NAS Hard Drive: 1 to 8-bay RAID Hard Drive: 3.5-inch SATA 6 Gb/s, IntelliPower, 64MB Cache WD40EFRX

by Western Digital

This product is currently out of stock.

Product ID: 431654


  • Extensively tested for compatibility with top NAS manufacturers.
  • Engineered for 24/7 operation and reliability.
  • WD NASWare technology enables seamless integration with balanced performance.
  • 3 year limited warranty.
  • Package includes a hard drive only - no screws, cables, manuals included. Please purchase mounting hardware and cables separately if necessary.
  • Western Digital Red WD40EFRX 4 TB 3.5" Internal Hard Drive WD40EFRX Hard Drives - Internal


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