ST16000NM000J Seagate Exos X18 16TB SATA 256 MB 3.5" Server HDD

High-Density 3.5-inch Nearline SATA Enterprise HDD engineered for scale-out capacity tiers with the ST16000NM000J

The ST16000NM000J is a 16TB 3.5-inch internal nearline HDD designed to anchor bulk storage pools in servers and storage arrays where predictable throughput, long duty cycles, and consistent latency matter more than peak IOPS. As a 7200 RPM SATA drive with a 256MB cache, it fits naturally behind modern x86 CPU platforms and RAID/HBA controllers, extending capacity per node without consuming PCIe lanes that are typically reserved for NVMe, networking, or GPU-accelerated workloads.

Built on CMR technology and Advanced Format, the ST16000NM000J supports 512e and 4Kn sector modes to align with current OS and hypervisor storage stacks, reducing integration risk during fleet refreshes. The helium-sealed design supports continuous operation in dense chassis and hot-plug service models, while nearline capacity economics enable multi-tier architectures where NVMe/SSD handle active datasets and the ST16000NM000J provides durable, high-capacity repositories for backups, object stores, and secondary virtualization storage.

Why Choose the ST16000NM000J?

The ST16000NM000J delivers a balanced density-to-power profile for scale-out nodes, helping IT teams grow usable capacity per rack unit while keeping controller, backplane, and cabling designs straightforward with single-port SATA. With a 2.5M-hour MTBF rating and continuous operation focus, the ST16000NM000J supports predictable lifecycle planning, consistent fleet behavior, and scalable expansion of capacity tiers across identical server configurations.

Seagate engineers the Exos platform for enterprise duty cycles, emphasizing validated firmware behavior, sustained thermal tolerance, and interoperability with common server backplanes and storage controllers. This approach aligns with modern data centre standards for serviceability, predictable power envelopes, and long-term availability in mixed workload environments.

Key Applications:

• Capacity tiers in rack servers and storage arrays
• Object storage and scale-out repositories
• Backup, archival, and compliance retention
• File and print services
• Secondary storage for virtualization clusters

At Happyware - Server Hardware you benefit from non-binding offers tailored to your storage expansion plan and bulk order discount options when standardizing the ST16000NM000J across multiple nodes or racks.