ST4000NM014A Seagate Exos 7E8 4TB SAS 256 MB 3.5" Server HDD

High-Density 3.5-inch Enterprise SAS HDD featuring CMR media and SED security with the ST4000NM014A

The ST4000NM014A is a 4TB, 7200RPM 3.5-inch enterprise HDD engineered for SAS storage shelves and rack servers where predictable latency, consistent write behavior, and 24/7 duty cycles matter more than burst performance. With CMR recording and a 256MB cache, the ST4000NM014A aligns with controller-based RAID and HBA topologies that prioritize sustained mixed read/write patterns across multiple spindles.

Designed for PCIe-attached server platforms that front-end storage via SAS HBAs and RAID controllers, the ST4000NM014A fits cleanly into modern expansion strategies where PCIe lanes are reserved for networking and acceleration while capacity tiers remain on SAS. Support for 4Kn and 512e helps standardize sector formats across heterogeneous fleets, while Protection Information (PI) strengthens end-to-end data integrity paths from host to media for enterprise storage stacks.

Why Choose the ST4000NM014A?

The ST4000NM014A delivers a balanced density-to-reliability profile for shared SAS domains, enabling scalable RAID groups and predictable rebuild behavior in capacity tiers. As a Self-Encrypting Drive, the ST4000NM014A supports compliance-driven deployments with hardware-based encryption, Instant Secure Erase, and FIPS 140-2 capable configurations, reducing operational friction when drives are repurposed or decommissioned.

Seagate designs the Exos enterprise line around sustained workload consistency, environmental resilience, and serviceability in multi-drive enclosures. With features such as PowerChoice power management and an integrated humidity sensor, Seagate supports data center operational standards while maintaining long-life characteristics expected from enterprise SAS storage.

Key Applications:

• Enterprise RAID arrays and JBOD capacity tiers
• Backup repositories and disk-based retention
• General-purpose SAS storage for virtualized hosts
• Compliance-sensitive encrypted storage pools

At Happyware - Server Hardware you benefit from Non-Binding Offers that align the ST4000NM014A with your enclosure, controller, and sector-format requirements, and from Bulk Order Discount options when standardizing multiple trays or shelves across a data center rollout.