WD ULTRASTAR 20TB DC HC555 SATA 6GB/S CENTER HARD DRIVE,WUH722020CLE6L4,0B48724, SATA, 512MB Cache Size, up to 285MB/s Transfer Rate | 0B48724

The WD Ultrastar DC HC555 20TB SATA Hard Drive is a high-capacity enterprise-class storage solution engineered for modern data centers, cloud environments, enterprise servers, and large-scale storage systems. Designed to deliver exceptional reliability, scalability, and performance, this 20TB hard drive is ideal for businesses handling massive workloads, big data analytics, backup infrastructure, and mission-critical applications.

Built with Western Digital’s enterprise-grade Ultrastar technology, the DC HC555 offers a powerful combination of massive storage capacity, dependable 24/7 operation, and optimized energy efficiency. Featuring a SATA 6Gb/s interface, 512MB cache, and transfer speeds up to 285MB/s, the drive ensures fast and consistent data access for demanding enterprise workloads.

The Ultrastar HC555 is specifically designed for hyperscale data centers and enterprise environments where storage density, durability, and long-term reliability are critical. With advanced vibration protection, enhanced workload capabilities, and enterprise-level endurance, this HDD provides dependable performance even under heavy operational stress.

Its helium-sealed architecture improves power efficiency while reducing heat generation and internal turbulence, enabling higher capacity and better operational stability. Combined with advanced security and reliability features, the WD Ultrastar DC HC555 is a trusted storage solution for enterprises requiring scalable and secure data storage.

Key Features

• Massive 20TB enterprise storage capacity
• SATA 6Gb/s interface for reliable connectivity
• Up to 285MB/s data transfer speed
• Large 512MB cache for optimized performance
• Enterprise-class reliability for 24/7 operation
• Helium-sealed technology for improved efficiency
• Designed for data centers and cloud infrastructure
• Enhanced vibration protection and workload handling
• Low power consumption with high storage density
• Ideal for backup, archival, and hyperscale environments

Enterprise-Class Performance

The WD Ultrastar DC HC555 is engineered to handle intensive enterprise workloads with consistent and stable performance. Its high-capacity architecture allows organizations to efficiently store and manage large volumes of data while maintaining fast access speeds and dependable operation.

With transfer rates reaching up to 285MB/s and a large 512MB cache, the drive is optimized for high-throughput applications such as:

• Cloud storage platforms
• Big data analytics
• Enterprise backup systems
• Video surveillance storage
• Large-scale archival systems
• Virtualized server environments
• Advanced Helium-Sealed Technology

The helium-filled internal design reduces turbulence and friction inside the drive, enabling:

• Higher storage density
• Lower power consumption
• Reduced operating temperatures
• Improved long-term reliability
• Quieter operation

This makes the HC555 highly suitable for dense data center deployments where efficiency and thermal management are essential.

Reliability & Durability

Built for continuous 24/7 enterprise operation, the WD Ultrastar series is known for exceptional durability and reliability. The drive includes advanced rotational vibration safeguards and enterprise-grade components to maintain performance stability in multi-drive server environments.

Its robust construction helps minimize downtime while ensuring consistent operation in mission-critical infrastructure.

Ideal For

• Enterprise servers
• Data centers
• Cloud computing infrastructure
• NAS & SAN storage systems
• Backup and disaster recovery
• Large-scale archival storage
• Hyperscale environments
• Video surveillance systems
• Virtualization platforms