ST373455SS Seagate Cheetah 15K.5 0.073TB SAS 16 MB 3.5" Server HDD

High-Performance 3.5-inch Enterprise SAS HDD featuring 15K spindle speed with the ST373455SS

The ST373455SS is a 3.5-inch internal enterprise HDD engineered for SAS backplanes in legacy storage shelves and server platforms that mandate rotating media. In architectures where CPU and memory resources are provisioned for predictable transactional service levels, the ST373455SS supports consistent I/O latency characteristics through 15,000 RPM mechanics and CMR recording, enabling stable queue behavior for RAID controllers and host bus adapters.

Designed for SAS infrastructures, the ST373455SS integrates cleanly into established expansion topologies and minimizes integration risk in environments where PCIe storage is not an option or where existing RAID stacks are operationally standardized. Its 16MB cache and balanced power profile align with dense chassis deployments that require controlled thermals and deterministic performance, making the ST373455SS suitable for boot/system volumes and smaller capacity tiers that prioritize service continuity over raw capacity.

Why Choose the ST373455SS?

The ST373455SS delivers a practical density-to-performance ratio for legacy SAS footprints, enabling you to maintain platform consistency while meeting transactional I/O requirements where HDDs remain mandated. For data centres managing mixed-generation fleets, the ST373455SS offers predictable integration in RAID arrays, supports scalable shelf population strategies, and fits operational models built around hot-swap 3.5-inch SAS drive maintenance and long-lived server configurations.

Seagate designs the Cheetah enterprise line with an emphasis on sustained duty cycles, mechanical reliability, and controlled behavior under continuous access patterns, aligning the ST373455SS with established data centre standards for serviceability, compatibility, and repeatable deployment across validated SAS ecosystems.

Key Applications:

• Legacy enterprise SAS storage shelves
• RAID arrays with 3.5-inch SAS HDD requirements
• Server boot and system volumes
• Transactional read/write workloads where HDD is mandated

At Happyware - Server Hardware you benefit from non-binding offers tailored to your deployment and compatibility requirements for the ST373455SS, enabling precise planning for refresh or spares strategies. For rollouts across shelves or multi-node server fleets, bulk order discount options help standardize configurations while managing procurement efficiency.