WD Ultrastar 14TB 512MB – WUH721414ALE6L4

SKU: 0F31284

Out of stock


Out of stock


14TB | 7200 RPM | SATA 6Gb/s and SAS 12Gb/s


Driving Up Capacity and Driving Down TCO for Cloud and Enterprise Data Centers

The breadth and depth of big data is driving the universal need for higher capacities across a broad spectrum of applications and workloads. Laying the foundation for a worry- free data center, Western Digital delivers capacity to conquer the data explosion–the 14TB Ultrastar® DC HC530 hard drive. Built using HelioSeal technology, the industry’s only fifth- generation helium platform and the basis for our high-capacity DC HC500 series, Ultrastar DC HC530 was designed for public and private cloud environments where storage density, Watts/TB and $/TB are critical parameters for creating the most cost-efficient infrastructure. HelioSeal technology is key to achieving higher drive capacities, higher reliability ratings and extreme power efficiency for lower levels of total cost of ownership (TCO) for cloud and enterprise customers.


  • 14TB capacity1 in a standard 5-inch form factor
  • CMR technology works seamlessly in capacity enterprise applications and environments
  • Reliable, field-proven, 5th generation design
  • HelioSeal® design delivers outstanding power efficiency (Watts/TB)
  • TDMR and improved dual-stage microactuator provide optimal head positioning and rotational vibration robustness
  • 5M hours MTBF6rating and 3-year limited warranty

Self-Encrypting Drive options

HelioSeal Technology Helps Solve Challenges Facing Next Generation Data Centers

Data centers are facing growing pressures. Data volume is expanding, operating costs are rising, yet budgets remain flat. HelioSeal technology enables Ultrastar DC HC530 to deliver one of the lowest power profiles in the industry, helping data center architects meet eco-environmental goals and requirements. Designed to handle workloads up to 550TB per year, the Ultrastar DC HC530 is based on conventional magnetic recording (CMR) technology for drop-in simplicity in enterprise and cloud data centers. Features like TDMR technology (two-dimensional magnetic recording) and a third-generation dual- stage microactuator work together to enhance head-positioning accuracy and deliver better performance, data integrity and overall drive reliability, critical in multi-drive environments where operational vibration is present. A choice of 6Gb/s SATA or 12Gb/s

SAS interface enables easy integration into high performance data centers. Trust Western Digital and the Ultrastar DC HC530 hard drive to deliver more capacity, more efficiency, more reliability and more value to your data center.


  • Cloud and Hyperscale storage
  • Massive scale-out (MSO), high-density data centers
  • Distributed File Systems
  • Bulk storage using Object storage solutions like CEPH™ and OpenStack Swift
  • Primary and secondary storage for Apache Hadoop® for Big Data Analytics
  • Surveillance analytics

Data Durability and Data Security Features to Support Compliance and Privacy Requirements

As drive capacity grows beyond single-digit TBs, object storage systems with erasure coding generally provide better data durability compared to RAID systems, given its tolerance for simultaneous error conditions. The Ultrastar DC HC530 is ideal for object storage implementations with its massive capacity and an unbeaten reliability rating. Compliance and privacy requirements drive the need for increased data security. The Ultrastar DC HC530 offers security and encryption options to help protect data from unauthorized use, on both SATA and SAS models.

Feature and Benefits













Feature / Function


Capacity •  14TB •  Provides 75% more capacity than 8TB air drives
Power Efficiency •  Ultra-low Watts per terabyte (W/TB) •  58% lower idle W/TB than 8TB Ultrastar air-filled drives
Performance •  TDMR and Dual-stage microactuator technology

•  Rotational Vibration Safeguard (RVS)

•  Media cache plus architecture

•  SATA 6Gb/s and SAS 12Gb/s

•  512MB cache buffer

•  More accurate head positioning, especially in multi-drive environments, for better performance data integrity and reliability

•  Maintains drive performance in high rotational vibration environments and multi-drive systems

•  Better random write performance

•  Provides compatibility with high-performance data centers

•  Improves response time and data management

Reliability •  Dual Safe, RSA-signed firmware

•  2.5M hours MTBF and 0.35% AFR

•  5-year limited warranty

•  Retains previous firmware version while updating safely, verified with an RSA signature

•  No higher reliability rating for Capacity Enterprise HDD in the industry for fewer failures/less service needs

•  Unbeaten for enterprise-class hard drives

Data Security •  Encryption options on both SATA and SAS models •  Hardware-based encryption helps protect data from unauthorized use (SED options)





Model No. WUH721414ALE6L4


Interface SATA 6Gb/s
Format: Sector size3
4Kn: 4096
512e: 512
Max. Areal density (Gbits/sq. in.) 904


Data buffer4
Rotational speed (RPM) 7200
Latency average (ms) 4.16
Interface transfer rate (MB/s, max) 600
Sustained transfer rate5

(MiB/s, typical)
(MB/s, typical)

255 / 267


Error rate (non-recoverable, bits read) 1 in 1015
Load/Unload cycles (at 40ºC) 600,000
Availability (hrs/day x days/wk) 24×7
(M hours)
Annualized Failure Rate2
Warranty (yrs) 5


Idle (Bels, typical) 2.0/3.6


Requirement +5 VDC, +12VDC
Operating7 6.0
Idle8 (W)  5.5
Power consumption efficiency at Idle (W/TB)


Physical size

z-height (mm) 26.1
Dimensions (width x depth, mm) 101.6 (+/-0.25) x 147
Weight (g, max)  690

Environmental (Operating)

Ambient temperature
to 60º
Shock half-sine wave 2 ms, G) 70
Vibration (G RMS 5 to 500 Hz) 0.67 (XYZ)

Environmental (Non-Operating)

Ambient temperature -40º
to 70º
Shock (half-sine wave, G) 300 (2ms) / 150 (11ms)
Random vibration
(G RMS 2 to 200 Hz)
1.04 (XYZ)

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