HGST 0B26311 Ultrastar 7K3000 3TB 7200 RPM 64MB SAS 6Gb/s 3.5" internal hard drive

Enterprise-grade capacity

The HGST Ultrastar 7K3000 delivers 3TB of storage on a 3.5-inch SAS 6Gb/s interface, spinning at 7200 RPM with a 64MB cache. It is built for 24x7 operation in multi-drive servers and storage arrays where sustained throughput and vibration tolerance matter. The 2.0 million-hour MTBF rating reflects a design validated by major OEMs and large-scale internet operators.

Replacing lower-reliability drives

This model supersedes earlier 5-platter designs that lacked the Dual Stage Actuator and Enhanced Rotational Vibration Safeguard. The jump is worth it when workloads demand continuous uptime and consistent performance across many spindles, rather than occasional desktop use. Drives without enterprise-grade MTBF and vibration safeguards cannot match the same service-life profile in dense enclosures.

Fits standard 3.5-inch SAS bays

The bare drive slides into any 3.5-inch bay with a SAS 6Gb/s backplane or controller, requiring no proprietary mounting hardware. Its 5-platter mechanical layout frees up controller ports by delivering high capacity per spindle, reducing the total drive count needed for a given raw capacity target. A compatible SAS HBA or RAID card and adequate cooling complete the installation.