WD Ultrastar HC555 3.5" 14TB, 7200 RPM, 512MB, 550 WRL, SATA III Hard Drive, Enterprise

The Western Digital Ultrastar HC555 is an internal hard drive engineered specifically for high-capacity storage within data center applications. With 14 TB of space, it is built to handle the large datasets and demanding workloads typical of enterprise-level systems. This drive is designed for continuous 24/7 operation, a claim supported by a Mean Time Between Failures (MTBF) rating of 2.5 million hours. Its construction and a workload rate limit of 550 TB per year underscore its focus on long-term reliability for mission-critical storage.

Performance is managed through a 7200 RPM spindle speed and a large 512 MB cache, which work together to facilitate efficient data access and transfer. The SATA 6 Gbit/s interface provides a standard connection for broad compatibility with server and storage system backplanes. To ensure consistent performance in dense, multi-drive arrays, the unit incorporates Rotational Vibration (RV) sensors that mitigate the effects of operational vibration. Furthermore, the drive includes S.M.A.R.T. support for proactive health monitoring and Secure Erase functionality.

• Offers 14 TB of storage capacity
• Features a standard 3.5-inch form factor
• Connects via a SATA 6 Gbit/s interface
• Operates at a 7200 RPM spindle speed
• Equipped with a 512 MB cache buffer
• Achieves a read speed of 269 MB/s
• Delivers a write speed of 257 MB/s
• Provides an average latency of 4.16 ms
• Consumes 5.3 W of power in an idle state
• Designed for use in data center environments
• Measures 101.6 x 147 x 26.11 mm
• Weighs 679 g