0A39289 WD Ultrastar A7K2000 1TB SATA 32 MB 3.5" Server HDD

High-Performance 3.5-inch Enterprise SATA HDD for 24/7 File and Backup Tiers with the 0A39289

The 0A39289 is a WD Ultrastar-class 3.5-inch internal enterprise HDD designed for predictable throughput and continuous operation in entry NAS and small business server environments. Built on a proven 7200RPM mechanical platform, it targets consistent latency characteristics for mixed read/write file services, backup ingestion, and general-purpose SATA pools where cost-effective capacity and operational stability are primary architectural drivers.

Within modern server and enclosure designs, the 0A39289 integrates cleanly into SATA backplanes and standard hot-swap bays, keeping PCIe lanes available for higher-value accelerators and networking. Its CMR recording method supports sustained write behavior that is easier to model than SMR under long sequential transfers, while Advanced Format 4Kn with 512e emulation helps align with contemporary storage stacks and legacy compatibility. The 32MB cache and 7200RPM spindle profile are suited to RAID groups and mirrored pairs where rebuild times and steady-state performance must remain controlled.

Why Choose the 0A39289?

The 0A39289 provides an efficient density-to-performance balance for SATA-based capacity tiers, enabling straightforward scaling by adding drives rather than redesigning the platform. For IT teams standardizing on 24/7 duty cycles, the 0A39289 supports reliable operation in multi-drive arrays and predictable deployment across servers and storage enclosures, simplifying capacity planning and lifecycle maintenance.

WD’s Ultrastar engineering prioritizes sustained enterprise workloads, consistent manufacturing tolerances, and long-term platform continuity aligned to data center operating expectations. The 0A39289 reflects this approach through a focus on continuous operation, practical power characteristics, and compatibility with established SATA infrastructure.

Key Applications:

• Entry NAS storage
• Small business file servers
• Backup repositories
• Archive and cold data tiers
• General-purpose SATA HDD pools

At Happyware - Server Hardware you benefit from non-binding offers tailored precisely to your needs for deploying the 0A39289 at scale, with the option to extend the warranty up to 6 years to protect long-lived storage tiers.