Image Not Available

WD 4TB Ultrastar 7200 rpm SATA 3.5" Internal Data Center HDD (Retail)

WD 4TB Ultrastar 7200 rpm SATA 3.5" Internal Data Center HDD (Retail)

WD 4TB Ultrastar 7200 rpm SATA 3.5" Internal Data Center HDD (Retail)

Show MoreLess


Now Viewing:

Expected availability: Jun 10, 2019

Product Highlights

  • 4TB Storage Capacity
  • 3.5" Form Factor
  • SATA III 6 Gb/s Interface
  • 256 MB Cache
  • 7200 rpm
  • Up to 233 MB/s Data Transfer Rate
  • 600,000 Load/Unload Cycles
  • 2 Million Hours MTBF
  • Dynamic Fly-Height & Dual-Stage Actuator
  • Designed for Data Centers
Show moreShow less
$0 VA Sales Tax Collected on This Item
Add to Wish List Item in Wish List


  • 1Description

The 4TB Ultrastar 7200 rpm SATA 3.5" Internal Data Center HDD from WD is an enterprise-grade drive designed for demanding 24x7 data storage solutions. Ultrastar drives are built to be durable, featuring up to an error tolerance of <1 in 1015, a MTBF rating of 2 million hours, and an Annualized Failure Rate (AFR) of 0.44%, depending on the model. Endurance aside, this drive offer fast 7200 rpm performance with 256 MB of cache and data transfer speeds of up to 233 MB/s.

Enterprise-Class Storage
Designed for data centers and demanding environments, WD Ultrastar drives have a MTBF rating of at least two million hours and are built for yearly (24x6x365) operation.
Vibration Protection
WD Ultrastar drives are built with Enhanced Rotational Safeguard (RVS) technology, which monitors and corrects linear and rotational vibrations in real-time for improved performance.
Dynamic Fly-Height & Dual-Stage Actuator Technology
Dynamic Fly-Height technology utilizes real-time read/write head adjustments for consistent performance, reduced errors, and optimized reliability. Dual-Stage Actuator technology improves positional accuracy over the data track. The primary actuator provides course displacement using conventional methods, whereas the secondary actuator uses piezoelectric motion to fine-tune the head positioning to a higher degree of accuracy.
Compatibility Testing
WD Ultrastar hard drives are extensively tested with a variety of storage systems, SATA controllers, and host bus adapters to ensure they are a simple plug-and-play storage solution.
In the Box
WD 4TB Ultrastar 7200 rpm SATA 3.5" Internal Data Center HDD (Retail)
  • Limited 5-Year Warranty
  • Table of Contents
    • 1Description


    Drive Capacity 4.0 TB
    Cache Memory 256 MB
    Interface SATA III (6 Gb/s)
    Maximum Read Speed 233 MB/s
    Drive Type HDD
    Form Factor 3.5"
    Noise Level 29.0 dB (Idle)
    36.0 dB (Active)
    HDD Specs
    Spindle Speed (RPM) 7200 RPM
    Reliability / Data Integrity
    Annualized Failure Rate (AFR) 0.44 %
    Load/Unload Cycles 600,000
    Mean Time Between Failures (MTBF) 2.0 Million Hours
    Non-Recoverable Read Errors per Bits Read < 1 in 1014
    Power Draw 7.0 W (Active)
    5.9 W (Idle)
    Supported Voltage 5 VDC, 12 VDC
    Operating Shock 70 G / 2.0 ms
    Storage Shock 300 G / 2.0 ms
    Operating Temperature 41 to 140°F / 5 to 60°C
    Storage Temperature -40 to 158°F / -40 to 70°C
    Certifications RoHS, as per Manufacturer
    Dimensions (W x H x D) 4.0 x 1.0 x 5.8" / 101.6 x 25.4 x 147.3 mm
    Weight 1.6 lb / 0.7 kg

    WD WDBBUR0040BNC-WRSN Reviews

    Be the first to review this item


    WD WDBBUR0040BNC-WRSN Accessories

    See any errors on this page? Let us know. swreacybdwfevfzzxbcwexz