Western Digital Ultrastar HC555 12TB 3.5" SAS 6.0 Data Center HDD 0B47741

In the ever-evolving landscape of data management, the Western Digital Ultrastar HC555 12TB 3.5" SAS 6.0 Data Center HDD 0B47741 represents a purpose-built solution for enterprises that require massive capacity, steady performance and proven dependability. Engineered by Western Digital for 24×7 multi-user data center environments, this drive balances the storage density needed to consolidate vast datasets with the sustained throughput required for mission-critical workloads. Designed to integrate seamlessly into enterprise storage arrays and server environments, the Ultrastar HC555 empowers IT teams to scale storage, simplify management and keep critical applications responsive under heavy, continuous demand.

Benefits

• Massive capacity to reduce infrastructure sprawl: With 12TB of raw storage in a 3.5" form factor, you can store more data per drive and consolidate more workloads in the same rack space, lowering footprint and simplifying expansion planning.
• Consistent performance for demanding workloads: The combination of 7200 RPM spindle speed and a generous 512MB cache helps deliver predictable, sustained throughput for multi-user, high-intensity operations such as virtualization, databases, and large-scale content repositories.
• Enterprise-grade interface and compatibility: SAS 6.0Gb/s interface provides reliable, full-duplex connectivity and is widely supported across data center servers and storage systems, enabling straightforward integration into existing enterprise infrastructures.
• Reduced operational risk: Built by Western Digital to meet data center performance and reliability expectations, the Ultrastar HC555 is optimized to minimize unplanned interruptions and maintain availability across continuous 24×7 operation.
• Cost-effective scale-out: High capacity per drive enables more efficient use of chassis and rack resources, helping organizations extend usable storage without immediately investing in additional hardware or complex reconfiguration.
• Simplified deployment and maintenance: Standard 3.5" form factor and industry-standard connectivity make the drive easy to deploy, monitor, and replace as part of routine operations or capacity upgrades.

Key features

• High-capacity 12TB storage: Delivers substantial storage density in a single 3.5" enterprise drive, ideal for data-intensive applications, archive tiers, large object stores, and scale-out storage architectures.
• SAS 6.0 Gb/s interface: Enterprise-grade Serial Attached SCSI connectivity ensures robust, low-latency, and full-duplex communication with servers and RAID controllers, supporting demanding multi-user environments and high I/O workloads.
• 7200 RPM spindle speed: Balances power efficiency with performance to provide steady seek and throughput characteristics, making it well-suited for mixed read/write workloads typical in data center deployments.
• 512MB cache buffer: A large onboard cache accelerates access to frequently used data and improves sustained transfer rates, contributing to smoother application performance under concurrent access by many users.
• 3.5" enterprise form factor and proven design: Built to fit standard enterprise drive bays and engineered by Western Digital for data center reliability and endurance, enabling predictable operation in always-on environments.

Summary

The Western Digital Ultrastar HC555 12TB 3.5" SAS 6.0 Data Center HDD (MPN: 0B47741) is a high-capacity, enterprise-focused storage drive designed to meet the needs of modern data centers. Combining a large 12TB capacity, SAS 6.0 Gb/s connectivity, 7200 RPM performance and a substantial 512MB cache, it offers a reliable foundation for virtualization, large-scale file systems, backup and archive tiers, and other demanding workloads. Whether you’re consolidating storage, expanding capacity, or building out a scale-out storage architecture, the Ultrastar HC555 provides the performance profile and capacity density needed to keep critical systems responsive and operational around the clock.