Ultrastar DC HS540 12TB SATA 6Gb/s 3.5-inch 7200RPM

The Western Digital Ultrastar DC HS540 12TB (HUS726T2TALE6L4) is a 3.5-inch enterprise hard drive engineered for high-density storage deployments where capacity, sustained throughput, and operational reliability are paramount. Built on helium-sealed HelioSeal technology, the HS540 platform reduces internal air turbulence and drag, enabling higher platter density and lower power consumption compared to conventional air-filled drives. The 7200RPM spindle speed combined with a SATA 6Gb/s interface delivers consistent sequential read and write performance suited to the demanding I/O profiles of modern datacenters.

The HS540 is designed around Western Digital's Media Cache technology, which uses a dedicated high-performance zone on the recording media to absorb bursty write workloads before destaging to the main recording surface. This architecture smooths performance variability under mixed and random workloads without relying on volatile DRAM-backed caching that could expose data to loss events. The drive carries a 550TB per year workload rating, reflecting its positioning as a capacity-optimized enterprise drive intended for write-intensive archival, nearline, and cold-storage tiers rather than transactional OLTP environments.

As part of the Ultrastar DC product family, the HS540 12TB is compatible with standard 3.5-inch LFF drive bays and is supported by Western Digital's enterprise firmware stack, which includes power management modes, error recovery controls tunable for RAID environments, and vibration compensation circuitry for multi-drive enclosures. The drive is well-suited for scale-out object storage, AI training dataset repositories, media asset management vaults, and surveillance video retention platforms where high per-drive capacity and predictable steady-state throughput are critical selection criteria.

Ideal for

• Nearline and cold-storage tiers in hyperscale and enterprise datacenters requiring maximum usable capacity per rack unit
• AI and machine learning training dataset repositories where large sequential reads from multi-petabyte libraries are the dominant workload
• Scale-out object storage clusters (such as those running Ceph, MinIO, or S3-compatible platforms) demanding high-density, cost-efficient raw capacity nodes
• Surveillance and video analytics platforms requiring continuous high-bitrate write streams across large numbers of concurrent camera feeds
• Media and entertainment digital asset management archives storing uncompressed or high-resolution video files for post-production pipelines
• Backup and data protection targets in disk-to-disk or disk-to-disk-to-cloud architectures where sustained ingest throughput and drive endurance are essential

Technical specifications

Available from Omnixon Global. Submit an RFQ and our team will confirm configuration and availability for your order.