Dell 05WTN / HGST / Hitachi Ultrastar DC HC320 0B36417 / HUS728T8TAL4204 8TB 3.5" 12Gbps 7.2K RPM 4Kn SE SAS Hard Drive

Hitachi Part #/MPN: HUS728T8TAL4200

DiscTech Item #: HIT-HUS728T8TAL4200-BN-OE-DEL


Enterprise Grade

Capacity: 8TB

Speed: 7,200RPM

Interface Types: SAS Serial Attached SCSI

Form Factor: 3.5inx1.0in LFF Hard Drive

Sector Size: 4Kn

Sustained Throughput: 243/255

Average Seek Time: 8.0/8.6

Electrical Interface: SAS-3 Serial Attached SCSI v3 - 12.0Gbps

On-Board Cache: 256MB

Dell 05WTN / HGST / Hitachi Ultrastar DC HC320 0B36417 / HUS728T8TAL4204 8TB 3.5" 12Gbps 7.2K RPM 4Kn SE SAS Hard Drive - Brand New Dell OEM

Dell 05WTN / HGST / Hitachi Ultrastar DC HC320 0B36417 / HUS728T8TAL4204 8TB / 8,000GB 3.5" 12.0 Gb/s 7200 RPM 4Kn / 4K Native SE / Secure Erase SAS / Serial Attached SCSI HDD / Hard Drive - Brand New

Alt Model#: HUS728T8TAL4204 HUS728T8TAL4200

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 Dell server that accepts 3.5inx1.0in (LFF) SAS Hard Drive.

Ultrastar DC HC HC320 SAS Hard Drive
Model NumberHUS728T8TAL4200
Alt Model NumberHUS728T8TAL4204
Physical size
Environmental (Operating)
Environmental (Non-Operating)
Data Security ModeSecure Erase
InterfaceSAS 12Gb/s
Capacity (TB)8TB / 8,000
Form Factor3.5-inch
Format Sector Size (bytes)4Kn: 4096, 4104, 4160, 4224
Max. Areal Density
(Gbits/sq. in.)
Data Buffer (MB)256
Rotational Speed (RPM)7200
Latency Average (ms)4.16
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)2.9/3.6
Requirement+5 VDC, +12VDC
Operating (W)12.8
Idle (W)8.4
z-Height (mm)26.1
(width x depth, mm)
101.6 (+/- -0.25) x 147
(g, max)
Ambient Temperature5° to 60° C
(half-sine wave 2 ms, G)
(G RMS 5 to 500 Hz)
0.67 (XYZ)
Ambient Temperature-40° to 70° C
(half-sign wave, 2 ms, G)
(G RMS, 2 to 200 Hz)
1.04 (XYZ)

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ROHS Compliant

Alternate MPNs: HUS728T8TAL4204 0B36417 05WTN 005WTN

Weight: 1.8 lb

Warranty: 1 Year DiscTech

Brand New

Condition Levels Explained

The product is brand new.

1 Year DiscTech Warranty

Product Warranties Explained

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