WUS721010ALE6L4 WD Ultrastar DC HC330 10TB SATA 256 MB 3.5" Server HDD

High-Capacity 3.5in Datacenter SATA CMR HDD for Always-On Storage with the WUS721010ALE6L4

The WUS721010ALE6L4 is a 10TB WD Ultrastar enterprise HDD engineered for predictable throughput and sustained random I/O in 24/7 datacenter environments. As a 3.5in SATA drive, it integrates cleanly into standard rack server storage backplanes and JBOD shelves, enabling cost-efficient capacity expansion without changing the host CPU or memory platform.

Built on 7200 RPM CMR recording with a 256MB cache, the WUS721010ALE6L4 is optimized for RAID rebuild stability and consistent write behavior that nearline NAS/SAN and virtualization capacity tiers depend on. The SATA interface supports 512e and 4Kn presentation for alignment with modern OS and hypervisor stacks, while maintaining broad compatibility with existing controllers and HBA firmware. In scale-out storage nodes, the WUS721010ALE6L4 supports dense PCIe expansion strategies by keeping capacity on SATA bays, reserving PCIe lanes for networking, accelerators, or NVMe where latency is critical.

Why Choose the WUS721010ALE6L4?

The WUS721010ALE6L4 delivers a practical density-to-performance balance for bulk repositories and nearline tiers, reducing rack footprint while maintaining an enterprise reliability profile. With a 2.0M hour MTBF rating and datacenter duty-cycle design, it scales predictably in multi-drive RAID sets and high-availability storage pools, aligning with operational requirements for continuous service and controlled maintenance windows.

WD designs Ultrastar platforms with an engineering focus on sustained workload tolerance, consistent firmware behavior, and integration into standard datacenter qualification processes. The WUS721010ALE6L4 aligns with modern storage standards by supporting 512e/4Kn formatting flexibility and Secure Erase (SE) for lifecycle handling and decommissioning procedures.

Key Applications:

• RAID arrays in rack servers
• NAS/SAN nearline capacity tiers
• Virtualization datastore capacity expansion
• Backup repositories and disk-based archive
• Always-on 24/7 storage nodes

At Happyware - Server Hardware you benefit from non-binding offers tailored to your storage architecture and rollout plan, and you can extend the warranty up to 6 years to protect long-lived capacity deployments based on the WUS721010ALE6L4.