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
-
7200RPM rotational speed ensures fast data access
-
512MB cache buffer improves sustained throughput
-
SATA 6Gb/s interface for wide server compatibility
🔹 Data-Center Grade Reliability
-
Designed for 24×7 continuous operation
-
Up to 550TB/year workload rating
-
2.5 million hours MTBF for long-term dependability
🔹 Advanced HGST Technologies
-
HelioSeal® helium-filled design for lower power consumption and heat
-
512E Sector Format (SE) for modern storage systems
-
Rotational Vibration Safeguard (RVS) for multi-drive arrays
-
Non-Powered Pin 3 (NP3) for compatibility with enterprise backplanes
USE CASES
-
Enterprise servers
-
Data centers
-
Cloud infrastructure
-
NAS & SAN storage
-
Backup & disaster recovery
-
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) |





Reviews
There are no reviews yet.