Connection Clearance Center. Shop Now!

Subscribe to Our Emails


          WD 4TB WD Red SATA 6Gb s 3.5" Internal NAS Hard Drive

          More From: WD
          Item #: 16219251
          Mfr. Part#: WD40EFRX
          Availability: In Stock
          Est. Ship: Ships Today

          • Serial ATA 7-pin connector
          • Buffer size is 64MB cache
          • Warranty: 3 Years

          Make sure your NAS has the right drive!

          Ordering Information

          Designed for NAS systems that have 1-5 drive bays, the 4TB WD Red SATA 6Gb/s 3.5" Internal NAS Hard Drive is extensively tested for compatibility in the unique 24x7
          operating environment and demanding system requirements of home and small office NAS. With a 35 percent MTBF improvement over standard desktop drives, the WD Red drive is designed and manufactured to be a more reliable and robust solution. The secret is in the technology–NASware Advanced firmware technology built into every WD Red drive, enables seamless integration, robust data protection and optimal performance for systems operating in NAS and RAID environments. This innovative technology reduces power consumption and lowers the operating temperature, resulting in a more reliable and affordable solution for always on NAS environments.
          Collapse & Return to Top
          Actual Weight 1.40 lb(s)
          Connector Serial ATA 7-pin
          Connector Type SATA 6Gbps
          Contents Drive
          Enclosure Type Internal
          Form Factor 3.5"
          Target Use Network Attached Storage
          Buffer Size, Cache 64 MB
          Data Transfer Rate 6 Gbps
          Physical Dimensions 1"h x 4"w x 5.8"l
          Ports/Connectors 7-pin SATA 6Gb/s port
          Power Notes Current Requirements
          12 VDC
          Read/Write: 250 mA
          Idle: 230 mA
          Standby: 7 mA
          Sleep: 7 mA

          5 VDC
          Read/Write: 280 mA
          Idle: 260 mA
          Standby: 105 mA
          Sleep: 105 mA

          Power Dissipation
          Read/Write: 4.50 Watts
          Idle: 3.30 Watts
          Standby: 0.40 Watts
          Sleep: 0.40 Watts
          Encryption No
          Returns Policy This product is subject to our return policy. Please see our complete return policy for details.
          Hard Drive Capacity 4 TB
          UNSPSC 43201803
          Warranty - Labor 3 Years
          Warranty - Parts 3 Years
          Collapse & Return to Top
          Add this product to your cart with selected accessories
          Add To Cart
          Adapters & Port Converters (1 Product)
          Multi-Drive Enclosures (2 Products)
          Network Attached Storage (1 Product)
          Single-Drive Enclosures (1 Product)
          Add this product to your cart with selected accessories
          Add To Cart
          Collapse & Return to Top

          Our Accessibility Policy

          We endeavor to make our website accessible to any and all users. Please contact us toll-free at 800-998-4388 if you need assistance with navigating our blog, website, or placing an order. We appreciate your business and are happy to answer any questions that you may have.