ST14000NM004J Seagate Exos X18 14TB SAS 256 MB 3.5" Server HDD

High-Density 3.5-inch Enterprise SAS HDD for capacity tiers with the ST14000NM004J

The ST14000NM004J is a 14TB 3.5-inch Seagate Exos X18 enterprise HDD engineered for capacity-optimised storage layers in modern server and storage architectures where predictable throughput, sustained duty cycles, and serviceability matter. Deployed behind SAS HBAs or RAID controllers, it integrates cleanly into current CPU platforms with PCIe expansion by providing a stable bulk-storage tier that complements NVMe SSD pools used for caching, metadata, or hot data.

Using CMR recording and Advanced Format support (4Kn and 512e), the ST14000NM004J fits mixed-OS estates and array firmware requirements while maintaining consistent write behaviour for rebuilds and large sequential streams. Dual-port SAS enables path redundancy in multipath topologies, improving availability for clustered storage nodes and shared backplanes. The 7200RPM spindle and 256MB cache balance latency and throughput for backup windows, object storage, and scale-out capacity nodes without over-provisioning flash.

Why Choose the ST14000NM004J?

Choosing the ST14000NM004J supports a disciplined tiering strategy: maximise TB per RU while keeping enterprise reliability and operational continuity in focus. The ST14000NM004J delivers high capacity density for storage shelves and 2U/4U platforms, scales predictably in large drive counts, and aligns with dual-controller or dual-fabric deployments where redundant paths reduce maintenance risk.

Seagate designs the Exos family around sustained 24x7 workloads, strict thermal envelopes, and fleet-level manageability expectations typical of data centre operations. With enterprise validation and long-life engineering targets, the ST14000NM004J is suited to standardised procurement and consistent behaviour across large homogeneous drive populations.

Key Applications:

• Capacity-optimised server storage tiers
• Enterprise backup and archive repositories
• Software-defined storage (Ceph, vSAN capacity tier)
• Object storage clusters
• RAID arrays and JBOD expansion shelves

At Happyware - Server Hardware you benefit from Bulk Order Discount options for large ST14000NM004J deployments and the ability to extend the warranty up to 6 years, helping you standardise capacity expansions with predictable lifecycle coverage.