Western Digital 12TB SATA 6G 7.2K 3.5" HDD Ultrastar DC HC520 HUH721212ALE600 HUH721212ALE600
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- Specifications
- Description
| Manufacturer Part Number | HUH721212ALE600 |
| Manufacturer | Western Digital |
| Condition | Refurbished |
| Standard Warranty | 90 Day Replacement Warranty |
| Item Category | Hard Drives |
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Western Digital 12TB SATA 6G 7.2K RPM 3.5" HDD
Ultrastar DC HC520 (HUH721212ALE600)
The Western Digital Ultrastar DC HC520 12TB HDD is a high-performance, enterprise-class storage solution designed for data centers, cloud environments, and large-scale storage systems. As the base platform for many OEM drives (including Cisco and Dell variants), this model delivers proven reliability, efficiency, and consistent performance for demanding workloads.
Key Features
- High-Capacity 12TB Storage – Designed for large-scale data storage, backup, and archival systems
- Enterprise-Class Performance – 7200 RPM speed with strong sustained throughput
- HelioSeal Technology – Helium-filled design improves efficiency, lowers power usage, and enhances durability
- CMR Recording Technology – Ensures consistent performance for enterprise applications
- Optimized for Data Centers – Built for continuous operation in multi-drive environments
Technical Specifications
- Brand: Western Digital (HGST)
- Series: Ultrastar DC HC520 (He12)
- Model: HUH721212ALE600
- Capacity: 12TB
- Form Factor: 3.5" LFF
- Interface: SATA III 6Gb/s
- Speed: 7200 RPM
- Cache: 256MB
- Sector Format: 512e
- Recording Type: CMR (PMR)
Transfer Rates:
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Interface: 600 MB/s
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Sustained: Up to 255 MB/s (write), 243 MB/s (read)
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Average Latency: 4.16 ms
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Average Seek Time: 8.0 ms (read), 8.6 ms (write)
Reliability and Enterprise Features
- MTBF: 2.5 million hours
- AFR: 0.35%
- Workload Rating: Up to 550TB per year
- Load/Unload Cycles: 600,000
- Designed for continuous enterprise operation
Advanced Features:
- Dual Stage Actuator (DSA) for precise head positioning
- Rotational Vibration Safeguard (RVS) for stable multi-drive performance
- Media Cache Plus for improved write performance
- Rebuild Assist to support faster RAID recovery
- Instant Secure Erase (ISE) capability
Power and Environmental Specifications
- Power Requirements: +5VDC and +12VDC
- Power Consumption: ~5.3W idle / ~7.2W active
- Operating Temperature: 5°C to 60°C
Dimensions:
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Height: 26.1 mm
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Width: 101.6 mm
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Depth: 147.0 mm
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Weight: ~660g
Alternate / Related Part Numbers
0F30144
HUH721212ALE600
Why Choose This Drive?
The Ultrastar DC HC520 is a proven enterprise platform used across major OEM solutions. It delivers dependable performance, high storage density, and advanced reliability features for modern data center environments. With helium-sealed technology and enterprise-grade engineering, it is well suited for organizations requiring efficient, scalable, and long-lasting storage solutions.