WD Ultrastar 10TB 256MB – HUH721010ALE604

SKU: 0F27606

Out of stock


Out of stock

10TB & 8TB | 7200 RPM | SATA 6Gb/s & SAS 12Gb/s

Industry’s Best Capacity, Power Efficiency and Reliability Delivers Value to the Data Center

Laying the foundation for a worry-free data center, Western Digital delivers an exceptional capacity hard drive for the enterprise – Ultrastar DC HC510, previously known as Ultrastar He10 and part of our HC500 series of helium-filled hard drives. Designed to handle workloads up to 550TB per year, the Ultrastar DC HC510 uses PMR technology and is the industry’s first 10TB drive that is drop-in ready for any enterprise- capacity application or environment. Based on field proven, third-generation HelioSeal® technology, it offers one of the lowest power profiles in the industry to help data center architects meet eco-environmental goals and requirements. Targeted at 2.5M hours MTBF, the DC HC510 provides the highest reliability rating available of all HDDs on the market today by building on the successful design of its 8TB and 6TB predecessors. Trust Western Digital and Ultrastar DC HC510 to deliver more capacity, more efficiency, more reliability and more value to your data center.


  • 10TB capacity¹in a standard 5-inch form factor
  • PMR technology works with all capacity enterprise applications & environments
  • Reliable, field-proven, 3rd generation design
  • Superior power efficiency (Watts/TB)
  • Compared to our 8TB air drives

— 25% more capacity

— 43% more power efficient (Watts/TB)

— 25% more reliable (MTBF)

  • SATA 6Gb/s and SAS 12Gb/s

— 12Gb/s SAS compatible with next-gen data centers; backwards compatible with 6Gb/s SAS

  • 5M hours MTBF² rating & 5-year limited warranty

Instant Secure Erase (ISE) & Self-Encrypting Drive (SED) 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. Lowering the total cost of ownership (TCO) has become the focus of data center architects and the Ultrastar DC HC510 provides the best value proposition and greatest storage efficiency available. Compared to our 8TB air-filled drives, this HelioSeal hard drive provides 25% more capacity, uses 28% less idle power, is 43% more power efficient (Watts/TB), and is 25% more reliable, rated

at 2.5M hours MTBF. New features include a second-generation, dual-stage actuator— the Western Digital Micro-Actuator—enhancing head-positioning accuracy to deliver better performance, data integrity and overall drive reliability, especially in multi-drive environments where operational vibration is present. Refer to our technical brief to learn more. A choice of 6Gb/s SATA and 12Gb/s SAS interface enables easy integration into high performance data centers.

Data Durability and Security with Industry-Leading Quality and Reliability

As drive capacity grows beyond single-digit TBs, object storage systems with erasure coding provide better data durability compared to RAID systems, given its tolerance for simultaneous errors conditions. Ultrastar DC HC510 is a best-fit for object storage implementations given its massive capacity and industry-leading reliability rating.

Compliance and privacy requirements drive the need for increased data security. Ultrastar DC HC510 offers security and encryption options to protect data from unauthorized use, including a new option for TCG support on some SATA models.

Western Digital Quality and Service

Ultrastar DC HC510 extends Western Digital’s long-standing tradition of performance and capacity leadership. The proven drive design enables high reliability and availability to customer data. Ultrastar quality, performance and world class technical service

and support provides customers with a lower total cost of ownership over previous generations. Ultrastar drives are backed by an array of technical support and services, which may include customer and integration assistance. Dedicated to providing a complete portfolio of devices and systems, Western Digital products help create


  • Enterprise and data center applications where capacity density and power efficiency are paramount
  • Cloud & Hyperscale storage
  • Massive scale-out high-density data centers (MSO)
  • Bulk storage using object storage solutions like Ceph™ and Hadoop® to support Big Data Analytics
  • Centralized video surveillance
  • Drop-in ready for all mainstream enterprise capacity applications

Features & Benefits

Feature / Function Benefits
Capacity •  10TB and 8TB •  10TB provides 25% more capacity than 8TB drives
Power Efficiency •  Very low Watts per terabyte (W/TB) •  43% lower idle W/TB than our 8TB air drives
Performance •  Dual-Stage Micro Actuator

•  Rotational Vibration Safeguard (RVS)

•  NVC Quick Cache (SAS only)

•  Media cache architecture

•  Rebuild Assist mode

•  SATA 6Gb/s & SAS 12Gb/s

•  256MB 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

•  Dramatically improves RAID recovery time and maintains system performance during recovery

•  Provides compatibility with high-performance data centers

•  Improves response time and data management

Reliability •  Dual safe firmware

•  2.5M hours MTBF2 and 0.35% AFR2

•  5-year limited warranty

•  Retains previous firmware version for safe firmware updates

•  Industry’s highest reliability rating for Capacity Enterprise HDD for fewer failures/less service needs

Data Security •  Instant Secure Erase

•  New TCG option for SATA models

•  Enables swift and efficient drive redeployment and retirement

•  Hardware-based encryption protects data from unauthorized use




Configuration SATA Models
Model # HUH721010ALE604
Interface SATA 6Gb/s
Capacity1 10TB
Form Factor
Sector size (bytes)3 4Kn: 4096
512e: 512
Max. areal density
(Gbits/sq. in., max)
816 (10TB)


Data buffer (MB)4 256
Rotational speed (RPM)  7200
Latency average (ms) 4.16
Interface transfer rate (MB/s, max) 600
Sustained transfer rate5
(MiB/sec, typ.) (MB/sec, typ.)
237 / 215
249 / 225


Error Rate (non-recoverable bits read)  1 in 1015
Load/Unload cycles (at 40°C) 600,000
(hrs/day x days/wk)
(M hours)
Annualized Failure Rate2
Warranty (yrs) 3


Idle/Operating (Bels, typical) 2.0/3.6


Requirement +5 VDC, +12VDC
Operating (W, typical) 7 6.8
Idle (W)8 5.0

Power consumption efficiency at Idle (W/TB)

(Watts/TB) 0.50
(Watts/GB) 0.00050

Physical Size

z-height (mm, max) 26.1
Dimensions (width x depth, mm) 101.6 (+/-0.25) x 147
Weight (g, max) 660

Environmental (operating)

Ambient Temperature 5°C to 60°C
Shock (half-sign wave, 2 ms, G) 70
Vibration (G RMS, 5 to 500 Hz) 0.67 (XYZ)

Environmental (non-operating)

Ambient Temperature -40°C to 70°C
Shock (half-sign wave, 2 ms, G) 300 (2ms) / 150 (11ms)
Random vibration
(G RMS 2 to 200 Hz)
1.04 (XYZ)

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