0F38352 WD Ultrastar DC HC550 SAS 512 MB 3.5" Server HDD

High-Capacity 3.5in Datacenter SAS HDD for RAID and Tiered Storage with the 0F38352

The 0F38352 is a WD Ultrastar DC HC550 internal datacenter HDD engineered for sustained 24x7 duty-cycle operation in enterprise servers and storage arrays. Built around a 12Gb/s SAS architecture, it integrates cleanly into SAS backplanes, dual-path enclosures, and RAID shelves where deterministic command handling and expander compatibility are critical to predictable rebuild and scrub behavior.

To maintain performance consistency in dense deployments, the 0F38352 uses a helium-filled mechanical design and advanced recording and signal processing (EAMR with TDMR) to sustain high areal density while protecting read integrity under vibration and thermal variance. The 7200RPM spindle and 512MB cache support steady sequential throughput for backup targets and warm data tiers, while 512e sector formatting streamlines interoperability for legacy stacks that are not yet standardized on native 4Kn. For regulated environments, the 0F38352 implements hardware-based Self-Encrypting Drive functionality with TCG Enterprise SSC compliance, keeping encryption out of host CPU cycles and supporting secure decommissioning workflows.

Why Choose the 0F38352?

The 0F38352 delivers a pragmatic density-to-performance profile for SAS-based bulk storage where capacity, reliability, and fleet manageability matter more than peak IOPS. With datacenter-class endurance and a 2.5M-hour MTBF design target, the 0F38352 is well suited for scalable RAID groups and tiered architectures that must stay online during maintenance, expansion, and long rebuild windows.

WD designs the Ultrastar platform with an engineering focus on predictable behavior under continuous load, robust error recovery controls for RAID environments, and alignment with modern data centre requirements for security, serviceability, and long lifecycle support.

Key Applications:

• SAS storage arrays and RAID shelves
• Enterprise server bulk storage
• Backup and archive repositories
• Cold and warm data tiers
• Compliance-focused encrypted storage

At Happyware - Server Hardware you benefit from non-binding offers tailored to your deployment plan for the 0F38352 and an extended warranty of up to 6 years to safeguard long-term datacenter storage investments.