Western Digital Ultrastar 12TB SATA 6 Gb/s

Product Overview

The Western Digital Ultrastar WUS721212BLE6L4 is an enterprise-class 3.5-inch hard disk drive engineered for high-capacity data centers, cloud storage infrastructure, and heavy enterprise workloads. Built on field-proven HelioSeal® helium technology, it delivers high storage density, exceptional power efficiency, and robust 24/7 reliability.

Key Technical Specifications

Performance & Reliability

• Mean Time Between Failures (MTBF): 2.5 million hours

• Annualized Failure Rate (AFR): 0.35%

• Workload Rating: Up to 550 TB per year

• Load/Unload Cycles: 600,000 minimum

• Availability: 24/7 continuous operation grade

Power Management & Environmental

• Interface Power Mode Support: Yes (PowerDisable, etc.)

• Helium Technology: Features HelioSeal design to reduce turbulence and power consumption while increasing storage density.

• Operating Temperature: 5°C to 60°C (41°F to 140°F)

• Non-Operating Temperature: -40°C to 70°C (-40°F to 158°F)