Western Digital 8TB SATA HUS728T8TALE6L4 / 0B36404 / 0B36474 Ultra star DC HC320 LFF 7.2K Enterprise HDD

Western Digital Part #/MPN: HUS728T8TALE6L4

DiscTech Item #: WDC-HUS728T8TALE6L4-NP-OE-DEG

  • Low Stock:Call for ETA
    Stock Levels

    This item is currently (nearly) out of stock. It may be possible to arrange fast shipment. If you need it urgently call us. Otherwise, it usually ships within 1 week.


Enterprise Grade

Capacity: 8TB

Speed: 7,200RPM

Interface Types: SATA

Form Factor: 3.5inx1.0in LFF Hard Drive

Sector Size: 512 / 512e

Sustained Throughput: 243/255

Average Seek Time: 8.0/8.6

Electrical Interface: SATA 600 - 6.0Gbps

On-Board Cache: 256GB

Western Digital HUS728T8TALE6L4 / 0B36404 / 0B36474 Ultrastar DC HC320 8TB 3.5" LFF 6Gbps 7.2K 512e Enterprise SE SATA HDD - New Pull OEM

Western Digital HUS728T8TALE6L4 / 0B36404 / 0B36474 Ultrastar DC HC320 8TB 3.5" LFF 6Gbps 7.2K 512e Enterprise SE SATA HDD - New Pull OEM


HGST Ultrastar DC HC320
3.5-Inch Data Center Hard Disk Drive

Economics and Access Speed: Key Requirements for Low Capacity HDDs in the Data Center
As the industry evolves to develop purpose-built solutions for growing data storage requirements, IT managers continue to rely on lower capacity drives that are economical to acquire, yet deliver quick and reliable data access for traditional data center applications. Designed to handle workloads up to 550TB per year, Ultrastar® DC HC320* is an 8TB1 HDD that helps address economic and access requirements of many traditional IT workloads. Low capacity drives also help address architecture limitations. The Ultrastar DC HC320 is designed for traditional storage and server applications as well as distributed and scalable computing, including block and file storage architectures, providing fast 7,200 RPM performance and lower acquisition cost to help ease budget constraints. Ultrastar DC HC320 is offered with either 6Gb/s SATA or 12Gb/s SAS interface in a choice of 512e or 4Kn formats.

Technology Innovation Delivers Efficiency and Performance for Traditional IT Systems
Ultrastar DC HC320 is based on a proven 5-disk air platform design that uses conventional magnetic recording (CMR) technology in a 3.5-inch large form factor. Compared to the prior generation, Ultrastar 7K6000, the DC HC320 delivers 33% more capacity, up to 12% performance boost and uses slightly larger-diameter media. It features a secondgeneration, dual-stage micro actuator to enhance head positioning accuracy for better drive performance. Write performance gains are also supported by Western Digital’s media cache architecture, a diskbased caching technology that provides a large cache area on the disk, which also improves reliability and data integrity during unexpected power loss. Finally, the addition of flash-based non-volatile cache (NVC) on both SATA and SAS models helps improve write performance. The Ultrastar DC HC320 also includes a Rebuild Assist feature, which helps dramatically reduce RAID rebuild times and maintain system performance during the rebuild process. Learn more in our Rebuild Assist technical brief.

Data Security with Trusted Quality, Reliability
Compliance and privacy requirements drive the need for increased data security. Ultrastar DC HC320 helps protect data from unauthorized use by offering security and encryption options. SAS models offer hardwarebased encryption options, including a Trusted Computing Group (TCG) Enterprise_A, TCG with FIPS 140-2 certification, Level 2. The Ultrastar DC HC320 extends Western Digital’s long-standing tradition of reliability leadership with a 2M-hour MTBF2 rating.

Features & Benefits


  • Feature / Function
    • 8TB
    • Advanced Format
  • Benefits
    • Lower capacity point for traditional IT workloads and applications
    • Enables higher capacity and reliability


  • Feature / Function
    • Non-volatile cache (NVC)
    • Up to 255MB/s transfer rate
  • Benefits
    • Improved write performance and write splice protection
    • Up to 12% faster than Ultrastar 7K6000


  • Feature / Function
    • Dual-stage Micro Actuator
    • 2M hours MTBF and 0.44% AFR
  • Benefits
    • Better head positioning and rotational vibration robustness
    • One of the highest reliability ratings for air-filled Capacity Enterprise HDDs


  • Excellent random and sequential performance
  • 8TB capacity point supports traditional IT systems
  • Sustained transfer rate up to 255MB/s
  • Choice of 12Gb/s SAS or 6Gb/s SATA
  • Advanced Format 4Kn and 512e models
  • Self-Encrypting Drive (TCG SAS) options

Applications & Workloads

  • Distributed file systems, like Apache Hadoop® , to support Big Data analytics
  • Direct & Network Attached Storage (DAS & NAS)
  • RAID arrays


This drive is compatible with any server that accepts 3.5in x 1.0in (LFF) SATA drives

Ultrastar DC HC HC320 SATA Hard Drive

Model Number


Alt Model Number


Data Security Mode

Secure Erase



SATA 6Gb/s

Capacity (TB)

8TB / 8,000

Form Factor


Format Sector Size (bytes)

512e: 512

Max. Areal Density
(Gbits/sq. in.)



Data Buffer (MB)


Rotational Speed (RPM)


Latency Average (ms)


Interface Transfer Rate
(MB/s, Max)


Sustained Transfer Rate
(MiB/s, Typical)
(MB/s, Typical)

Up ro 243
Up to 225

Seek Time
Read/Write, ms, Typical)



Error Rate
(Non-Recoverable, Bits Read)

1 in 10^15

Load/Unload Cycles
(at 40°C)


(M Hours)

2m hours

Annualized Failure Rate


(Hrs/Day x Days/Week)



Idle/Operating (Bels, typical)




+5 VDC, +12VDC

Operating (W)


Idle (W)


Physical size

z-Height (mm)


(width x depth, mm)

101.6 (+/- -0.25) x 147

(g, max)


Environmental (Operating)

Ambient Temperature

5° to 60° C

(half-sine wave 2 ms, G)


(G RMS 5 to 500 Hz)

0.67 (XYZ)

Environmental (Non-Operating)

Ambient Temperature

-40° to 70° C

(half-sign wave, 2 ms, G)


(G RMS, 2 to 200 Hz)

1.04 (XYZ)

Click here to view the manufacturer's item description/brochure

ROHS Compliant

Alternate MPNs: 0B36404 0B36474 7MJCV 07MJCV

Weight: 1.8 lb

Warranty: 1 Year DiscTech

New Pull

Condition Levels Explained

The product has been mounted in a brand new system (e.g. server), then removed from the system, before entering service. These products may have some hours of usage due to system build time / burn-in / testing etc. New Pulls are guaranteed to have at least 95% (often 99%) of their service life remaining , they may show signs of being physically mounted and dismounted. All handling is performed by trained technicians, taking full ESD precautions.

1 Year DiscTech Warranty

Product Warranties Explained

The product has a DiscTech warranty for the time period specified. View our limited warranty