PRODUCT DESCRIPTION
The WD HGST Ultrastar DC HC555 20TB enterprise hard drive is engineered for mission-critical server and data-center environments. Featuring 7200RPM performance, 512MB cache, SATA 6Gb/s interface, and HelioSeal® technology, it delivers exceptional reliability, efficiency, and scalability for 24/7 workloads.
KEY FEATURES & BENEFITS
🔹 Massive 20TB Enterprise Capacity
Store large volumes of data efficiently—ideal for cloud storage, virtualization, backup, and archival systems.
🔹 Optimized Performance
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7200RPM rotational speed ensures fast data access
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512MB cache buffer improves sustained throughput
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SATA 6Gb/s interface for wide server compatibility
🔹 Data-Center Grade Reliability
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Designed for 24×7 continuous operation
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Up to 550TB/year workload rating
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2.5 million hours MTBF for long-term dependability
🔹 Advanced HGST Technologies
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HelioSeal® helium-filled design for lower power consumption and heat
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512E Sector Format (SE) for modern storage systems
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Rotational Vibration Safeguard (RVS) for multi-drive arrays
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Non-Powered Pin 3 (NP3) for compatibility with enterprise backplanes
USE CASES
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Enterprise servers
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Data centers
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Cloud infrastructure
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NAS & SAN storage
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Backup & disaster recovery
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Big data & archival storage
📊 TECHNICAL SPECIFICATIONS
| Specification | Details |
|---|---|
| Model Number | WUH722020CLE6L4 |
| Part Number | 0B48724 |
| Capacity | 20TB |
| Form Factor | 3.5″ |
| Interface | SATA III 6Gb/s |
| Speed | 7200 RPM |
| Cache | 512MB |
| Sector Format | 512E (SE) |
| Recording Tech | CMR |
| MTBF | 2.5 Million Hours |
| Workload Rate | 550TB/Year |
| Operating Mode | 24/7 Enterprise |
| Pin Type | NP3 (No Power Disable) |
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