WD 4TB Red 5400 rpm SATA III 3.5" Internal NAS HDD (WD40EFRX)

Item # WD40EFRX (Part # WD40EFRX)
Discontinued
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Item Description:
  • Interface: SATA 6 Gb/s
  • Formatted Capacity: 4TB
  • Form Factor: 3.5-inch
  • Advanced Format (AF): Yes
  • Native Command Queuing: Yes
  • RoHS Compliant: Yes
  • WD Red NAS Storage - Storage for 1 to 8 bay NAS solutions
    WD Red is designed specifically for NAS systems that have 1 to 8 drive bays in both 3.5-inch and 2.5-inch form factors. The drives are designed and extensively tested for compatibility in the unique 24x7 operating environment and for the demanding system requirements of home and small office NAS.

    • Interface: SATA 6 Gb/s
    • Form Factor: 3.5-inch
    • Performance Class: 5400 RPM Class
    • Capacity: 4TB

    Product Features:

    Fill your NAS with WD Red, then fill it with awesome.
    There's an industry-leading WD Red drive for every compatible NAS system to help fulfill your data storage needs. With drives up to 10TB, WD Red offers a wide array of solutions for customers looking to build the biggest, bestperforming NAS storage solution. Built for single-bay to 8-bay NAS systems, WD Red packs the power to store your precious data in one powerhouse unit. With WD Red, you're ready for what's next.

    Exclusive NASware 3.0
    Not just any drive will do. In singlebay to 8-bay NAS systems, WD Red raises the bar. Get as much as 80TB capacity, and with WD?s exclusive NASware 3.0, you can optimize every single one of them. Built into every WD Red hard drive, NASware 3.0's advanced technology improves your system's storage performance by increasing compatibility, integration, upgradeability, and reliability.

    Built for optimum NAS compatibility
    Our exclusive advanced firmware Desktop drives aren't purposebuilt for NAS. But WD Red drives with NASware are. Our exclusive technology takes the guesswork out of selecting a drive. WD Red is for small NAS systems, and our unique algorithm balances performance and reliability in NAS and RAID environments. Simply put, WD Red is the most compatible drive available for NAS enclosures. But don't take our word for it. WD Red is a reflection of the most extensive NAS partner compatibility-testing list that is available on the market.

    Desktop drives vs. WD Red
    In a Network Attached Storage device, a desktop hard drive is not designed for NAS environments. Do right by your NAS and choose the drive with an array of features to preserve your data and maintain optimum performance. Take the following into consideration when choosing a hard drive for your NAS:

    • Compatibility: Without being tested for compatibility with your NAS system, optimum performance is not guaranteed.
    • Reliability: The always-on environment of a NAS or RAID is a hot one. And desktop drives aren't typically designed and tested in those conditions. WD Red is.
    • Error recovery Controls: WD Red NAS hard drives are specifically designed with RAID error recovery control to help reduce failures within the NAS system. Desktop drives are typically not designed for RAID environments where this can be an issue.
    • Noise and Vibration Protection: Designed to operate solo, desktop drives offer little or no protection from the noise and vibration faced in a multi-drive system. WD Red drives are designed for multi-bay NAS systems.

    WD Red for Home
    Stream, backup, share and organize your digital content at home with a NAS and WD Red drives designed to effortlessly share content to the devices in your home. Red NASware increases your drives' compatibility with your devices, TV, stereo and more. Live in a connected world.

    WD Red for Small Business
    Businesses thrive on productivity and efficiency - two of the guiding principles built into the design of WD Red. It's the hard drive of choice for 1 to 8 bay systems. NASware 3.0 allows for seamless integration with your existing network so WD Red can share and backup files at the speed of your business. And for larger businesses with up to 16 bays, count on WD Red Pro.

    WD Red Pro for Big Business
    If you're looking for maximum performance in a heavy use NAS, WD Red Pro delivers the same exceptional performance for the business customer. For NAS environments with 8 to 16 bays, WD Red Pro is designed to handle an increase in workload and comes with a 5-year limited warranty.

    Product Specifications:

    • Model Number: WD40EFRX
    • Interface: SATA 6 Gb/s
    • Formatted Capacity: 4TB
    • Form Factor: 3.5-inch
    • Advanced Format (AF): Yes
    • Native Command Queuing: Yes
    • RoHS Compliant: Yes

    Performance

    • Interface Transfer Rate (max): Interface speed - 6 Gb/s, Internal transfer rate: 150 MB/s
    • Cache (MB): 64
    • Performance Class: 5400 RPM Class

    Reliability/Data Integrity

    • Load/Unload Cycles: 600,000
    • Non-recoverable read errors per bits read: less than 1 in 10 to the 15th power
    • MTBF (hours): 1,000,000
    • Workload Rate (TB/year): 180
    • Limited Warranty (years): 3

    Power Management

    • 12VDC +/-10 percent (A, peak): 1.75
    • Average Power Requirements (W): Read/Write: 4.5, Idle: 3.3, Standby/Sleep: 0.4

    Environmental Specifications

    • Temperature (degrees C): Operating: 0 to 65, Non-operating: -40 to 70
    • Shock (Gs): Operating (2ms, read/write): 30, Operating (2ms, read): 65, Non-operating (2ms): 250
    • Acoustics (dBA): Idle: 25, Seek (average): 28

    Physical Dimensions

    • Height (in/mm): 1.028/26.1
    • Length (in/mm): 5.787/147
    • Width (in/mm +/-.01 in): 4.101.6
    • Weight (lb/kg, +/-10 percent): 1.50/0.68
    WD 4TB Red 3.5" Internal NAS HDD
    Limited 3-Year Manufacturer Warranty
    This Kit Includes: