HGST Ultra 0F22790 6TB 7200 RPM 128MB SAS 3.5" internal hard drive

Enterprise storage drive

The HGST Ultra 0F22790 is a 6TB 3.5 inch internal hard drive built for server environments. It uses a Serial Attached SCSI interface running at 12Gb/s and spins at 7200 RPM with a 128MB cache. This drive suits administrators who need high-capacity, reliable storage for always-on workloads. It is not for builders who require the low latency of solid-state media.

Sustained throughput

The 7200 RPM spindle speed and 128MB buffer combine to deliver consistent data rates during long sequential reads and writes. The SAS 12Gb/s link keeps the bus from becoming a bottleneck when multiple drives stream data simultaneously. Average latency is rated at 12Gb/s, reflecting the interface ceiling rather than a mechanical delay. It is not for workloads that demand random-access speeds beyond what spinning media can provide.

Thermals and power

Enterprise-class helium sealing reduces internal friction, helping the drive run cooler under continuous operation. The 3.5 inch form factor allows ample surface area for heat dissipation in standard drive bays with forced airflow. Acoustic output remains typical for 7200 RPM mechanisms in rackmount chassis. It is not for fanless or noise-critical enclosures that cannot accommodate mechanical drive vibration.