Western Digital Ultrastar DC HC670 8TB Enterprise HDD SAS

Western Digital Ultrastar DC HC670 8TB Enterprise HDD SAS

Brand: Western Digital | Category: Enterprise HDDs

SKU: WEST-WUH721008AL5204 | Part #: WUH721008AL5204 | MPN: WUH721008AL5204

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About the Western Digital Ultrastar DC HC670 8TB Enterprise HDD SAS

The Western Digital Ultrastar DC HC670 8TB is a 3.5-inch SAS enterprise hard drive engineered for 24/7 continuous operation in demanding storage infrastructure. Launched in Q3 2022, the HC670 line represents the evolution of Ultrastar's proven platform, delivering sustained performance and reliability for server attached storage (SAS) arrays that remain prevalent in banking, telecom, and large-scale archival deployments. The drive combines 8TB capacity in a standard form factor, enabling organizations to maximize storage density while maintaining compatibility with installed SAS controller infrastructure.

Designed with enterprise workloads in mind, the HC670 features optimized mechanical architecture for reduced vibration and thermal stability, supporting multi-drive RAID configurations with minimal performance degradation. The drive's command queuing and native command queueing (NCQ) capabilities enhance responsiveness in high-concurrency environments typical of transactional databases and real-time analytics platforms. Western Digital's proven lubrication systems and head-disk interface technology ensure extended service life across continuous duty cycles.

The SAS interface variant maintains strong market traction within organizations operating legacy SAS-attached storage arrays, particularly in the financial services and telecommunications sectors where proven, backward-compatible solutions take precedence over rapid technology transitions. This positioning allows banks and telecom operators to expand capacity and replace drives without requiring broader storage infrastructure upgrades.

Ideal for

  • High-capacity SAS storage arrays serving transactional banking databases requiring 99.99% uptime and predictable latency
  • Telecom network element storage and call detail record archival in SAS-connected RAID enclosures
  • Legacy storage system expansion where SAS interface compatibility and proven reliability are mandatory
  • Large-scale backup and recovery systems supporting continuous data protection across enterprise networks
  • Content distribution and digital asset management repositories in media and broadcast operations
  • Healthcare PACS (Picture Archiving and Communication Systems) storage requiring sustained throughput and data integrity

Technical specifications

ManufacturerWestern Digital
Product LineUltrastar DC HC670
Capacity8TB
Form Factor3.5-inch
InterfaceSAS 12Gb/s
Spindle Speed7200 RPM
Average Seek Time8.5ms
Data Transfer Rate272 MB/s sustained
Cache256MB
Workload RatingEnterprise 24/7 continuous operation
Duty Cycle100%
Mean Time Between Failures (MTBF)2.5 million hours
Annual Workload550TB
Operating Temperature Range0°C to 60°C
Non-Operating Temperature Range-40°C to 70°C
Power Consumption (Read/Write)8.4W
Power Consumption (Idle)5.1W
Physical Dimensions101.6mm(W) × 146.99mm(D) × 26.1mm(H)
Weight600g
Launch DateQ3 2022

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Technical Specifications

BrandWestern Digital
CategoryEnterprise HDDs
SKUWEST-WUH721008AL5204
Part NumberWUH721008AL5204
ConditionNew
Product LineUltrastar DC HC670
Capacity8TB
Form Factor3.5-inch
InterfaceSAS 12Gb/s
Spindle Speed7200 RPM
Average Seek Time8.5ms
Data Transfer Rate272 MB/s sustained
Cache256MB
Workload RatingEnterprise 24/7 continuous operation
Duty Cycle100%
Mean Time Between Failures (MTBF)2.5 million hours
Annual Workload550TB
Operating Temperature Range0°C to 60°C
Non-Operating Temperature Range-40°C to 70°C
Power Consumption (Read/Write)8.4W
Power Consumption (Idle)5.1W
Physical Dimensions101.6mm(W) × 146.99mm(D) × 26.1mm(H)
Weight600g
Launch DateQ3 2022