HGST 0B42266 Ultrastar DC HC330 10TB 3.5" SATA 7200 RPM 256MB internal hard drive

Enterprise-grade capacity

The Ultrastar DC HC330 is a 10TB 3.5-inch hard drive built for enterprise storage arrays and servers. It connects through a SATA 6.0Gb/s interface and spins at 7200 RPM with a 256MB cache. The drive targets IT teams that need dense, reliable capacity for bulk data, backup targets or nearline archives. It is not suited for users who want solid-state latency or a portable form factor.

Sustained throughput

The 7200 RPM spindle and large cache keep sequential transfers steady during long write or read runs typical of RAID rebuilds, backup windows or video ingest. The SATA 6.0Gb/s link provides ample headroom for the drive’s native media rate so the interface rarely becomes the bottleneck. Performance stays consistent across the full 10TB capacity without the sharp drops seen on drives that rely on caching tiers. Workloads that demand random IOPS at queue depths above what a single actuator can deliver will need additional spindles or flash.

Thermals and power

In normal operation the drive runs within standard 3.5-inch enterprise thermal limits, drawing only the power required for the motor and controller. Acoustic output is typical for a 7200 RPM unit in a chassis with adequate airflow; no special cooling beyond usual server fan walls is required. The SATA interface keeps cabling simple and does not add the extra power phases needed by faster protocols. Builders who need lower idle power or silent operation should consider lower-RPM or solid-state alternatives.