ST16000NM004J Seagate Exos X18 16TB SAS 256 MB 3.5" Server HDD

High-Density 3.5in Enterprise SAS HDD for Capacity Tiers and RAID with the ST16000NM004J

The ST16000NM004J is a 3.5in enterprise HDD engineered for modern SAS backplanes, delivering predictable throughput for storage arrays and capacity tiers where CPU and GPU resources must remain focused on compute rather than I/O recovery. Integrated into dual-socket server platforms, the ST16000NM004J supports sustained ingest and rebuild patterns typical of high-core-count virtualization hosts, backup nodes, and object storage gateways.

With a 12Gb/s SAS interface, the ST16000NM004J aligns with PCIe-based SAS HBAs and RAID controllers that prioritize queue depth, deterministic latency, and fault isolation across large drive counts. Advanced Format support (512e/4Kn) simplifies alignment with contemporary filesystems and erasure/RAID layouts, while CMR recording maintains consistent write behavior under mixed workloads. The helium-sealed design and power-efficient operating profile help sustain dense chassis configurations without compromising thermal margins.

Why Choose the ST16000NM004J?

The ST16000NM004J provides a balanced density-to-serviceability profile for 24x7 enterprise deployments, enabling scalable capacity expansion in standard 3.5in bays while maintaining predictable rebuild and scrubbing characteristics in RAID sets. For storage architects, the ST16000NM004J supports straightforward scale-out growth, minimizing operational risk through enterprise reliability targets and SAS-managed integration in shared backplane environments.

Seagate designs the Exos platform with a focus on data center endurance, emphasizing controlled vibration behavior, consistent firmware response under sustained load, and qualification for storage arrays that demand long lifecycle stability and standardized sector formats.

Key Applications:

• Capacity-tier HDD pools
• RAID sets and rebuild-intensive arrays
• Backup and archive repositories
• Scale-out and object storage nodes
• 24x7 enterprise file and block services

At Happyware - Server Hardware you benefit from non-binding offers tailored to your deployment plan for the ST16000NM004J and from bulk order discount options when standardizing large drive populations across storage shelves and server fleets.