0F30142 WD Ultrastar DC HC520 12TB SATA 256 MB 3.5" Server HDD

High-Performance 3.5in Enterprise SATA HDD for Capacity-Tier Storage featuring 4Kn CMR with the 0F30142

The 0F30142 is a WD Ultrastar DC HC520 12TB internal 3.5in SATA HDD engineered for 24x7 datacenter operation where predictable throughput and high capacity per bay are required. Designed for modern server platforms and storage nodes, the 0F30142 aligns with capacity-tier architectures that prioritize efficient bulk storage while maintaining consistent latency characteristics suitable for shared RAID pools.

With a 7200 RPM CMR recording design and a 256MB cache, the 0F30142 supports sustained sequential workloads typical of nearline repositories, backup targets, and large file services. The SATA interface integrates cleanly into existing backplanes and HBAs, while the 4Kn sector format is optimized for contemporary operating systems and storage stacks that benefit from improved format efficiency. For security-bound deployments, the 0F30142 includes self-encrypting drive capability using 128-bit AES hardware encryption, enabling data-at-rest controls without consuming host CPU cycles.

Why Choose the 0F30142?

The 0F30142 delivers a strong density-to-power profile for scale-out storage shelves and high-bay-count servers, helping reduce drive count per usable terabyte and simplifying pool growth. The helium-filled platform and enterprise duty-cycle design target sustained reliability for continuously active arrays, making the 0F30142 a practical building block for standardized capacity nodes and repeatable expansion across racks.

WD engineers Ultrastar drives with an emphasis on consistent operation under vibration, thermal, and utilization stress typical of multi-drive enclosures. The 0F30142 reflects this enterprise focus through datacenter-aligned validation, long-life reliability targets, and design choices intended to support predictable integration into modern storage architectures.

Key Applications:

• Capacity-tier HDD pools
• RAID arrays in servers and storage enclosures
• Nearline backup repositories
• Disk-based archive targets
• General bulk server storage

At Happyware - Server Hardware you benefit from non-binding offers tailored precisely to your needs for integrating the 0F30142 into existing SATA bays and capacity tiers, and you can secure your deployment planning with an extended warranty up to 6 years for additional investment protection.