Western Digital Ultrastar DC HC670 20TB SAS HDD WUH722020BSL5204

Western Digital Ultrastar DC HC670 20TB SAS HDD WUH722020BSL5204

Brand: Western Digital | Category: Enterprise HDDs

SKU: WUH722020BSL5204 | Part #: WUH722020BSL5204 | MPN: WUH722020BSL5204

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About the Western Digital Ultrastar DC HC670 20TB SAS HDD WUH722020BSL5204

The Western Digital Ultrastar DC HC670 is a 20TB capacity SAS hard drive engineered for high-capacity enterprise storage arrays. Built on a CMR (Conventional Magnetic Recording) platform, the HC670 delivers consistent sequential and random I/O performance suitable for mixed workload environments in data centers. The dual-port SAS interface enables active-active connectivity in redundant storage configurations, providing path failover and load balancing for mission-critical systems.

Designed specifically for large-scale storage deployments, the HC670 integrates into HPE, Dell EMC, and other vendor storage arrays utilizing standard SAS backplanes. The drive features enterprise-grade reliability mechanisms including vibration tolerance for multi-drive bay environments and thermal management optimized for 24/7 operation in controlled data center conditions.

With a 20TB formatted capacity per drive, the HC670 maximizes storage density per rack unit, reducing total cost of ownership in hyperscale and enterprise data center architectures. The platform supports automated workload optimization and is specified in tier-2 and tier-3 storage applications including near-line archival, video repositories, and backup targets.

Ideal for

  • HPE and Dell EMC SAS storage array configurations requiring 20TB per-drive capacity
  • Large-scale video content repositories and media asset management systems
  • Enterprise backup and disaster recovery target storage
  • Nearline archival for compliance-driven data retention programs
  • Data warehouse and analytics platforms with sequential access patterns
  • Hyperscale data center storage infrastructure deployments

Technical specifications

ManufacturerWestern Digital
BrandUltrastar
ModelDC HC670
Manufacturer Part NumberWUH722020BSL5204
Capacity20TB
Form Factor3.5 inch
InterfaceSAS 12Gb/s dual-port
RPM7200
Cache512 MB
Recording TechnologyCMR
Data Transfer Rate (Max)272 MB/s
Average Latency4.16 ms
MTBF2.5M hours
Workload RatingEnterprise class, 24/7 operation
Annual Workload550 TB/year
Max Sustained Data Rate272 MB/s
Power Consumption (Idle)5.5W
Power Consumption (Operating)8.5W
Operating Temperature0°C to 60°C
Launch QuarterQ4 2022

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Technical Specifications

BrandWestern Digital
CategoryEnterprise HDDs
SKUWUH722020BSL5204
Part NumberWUH722020BSL5204
ConditionNew
ModelDC HC670
Manufacturer Part NumberWUH722020BSL5204
Capacity20TB
Form Factor3.5 inch
InterfaceSAS 12Gb/s dual-port
RPM7200
Cache512 MB
Recording TechnologyCMR
Data Transfer Rate (Max)272 MB/s
Average Latency4.16 ms
MTBF2.5M hours
Workload RatingEnterprise class, 24/7 operation
Annual Workload550 TB/year
Max Sustained Data Rate272 MB/s
Power Consumption (Idle)5.5W
Power Consumption (Operating)8.5W
Operating Temperature0°C to 60°C
Launch QuarterQ4 2022