Seagate Exos X18 16TB 3.5" 7200RPM SAS 12Gb/s HDD

Overview

The Seagate ST16000NM005J is an internal hard drive designed for enterprise storage solutions that require high capacity and reliable performance. Offering 16TB of storage with a 7200 rpm spindle speed and a SAS 12Gb/s interface, it supports sustained data transfers up to 261 MB/s, making it well suited for demanding workloads such as analytics, content delivery, and backup operations. Its helium-sealed design and 2,500,000-hour MTBF rating ensure durability and efficiency in always-on environments.

Key features

• Large 16TB capacity provides ample space for extensive data sets, virtual machine libraries, and archival storage without increasing rack space.
• SAS 12Gb/s interface delivers fast and stable connectivity for enterprise-grade data transfer speeds.
• 256MB cache buffer helps smooth out large file transfers and improves overall drive responsiveness.
• Helium-sealed construction reduces internal friction, enhancing reliability and lowering power consumption.
• Hot-plug capability allows for drive replacement or addition without shutting down the system, minimizing downtime.
• Self-encrypting drive (SED) with hardware-based encryption protects sensitive data and simplifies compliance with security policies.
• High mean time between failures (MTBF) rating of 2,500,000 hours supports long service life in continuous operation environments.

Key specs

• Capacity: 16TB
• Spindle speed: 7200 rpm
• Interface: SAS 12Gb/s
• Cache buffer: 256MB
• Sustained transfer rate: up to 261 MB/s
• Average latency: 4.16 ms
• MTBF: 2,500,000 hours
• Form factor: 3.5-inch

Connectivity and compatibility

This drive uses a SAS 12Gb/s interface, which ensures compatibility with enterprise storage controllers and servers that support this high-speed connection. It fits standard 3.5-inch drive bays commonly found in data center racks and storage arrays. The hot-plug feature allows integration into systems requiring minimal downtime during maintenance or upgrades.

Performance and reliability

The combination of a 7200 rpm spindle speed and a large 256MB cache buffer enables consistent and efficient data throughput, which is essential for workloads that demand steady performance. The helium-sealed design reduces mechanical wear and power consumption, contributing to the drive’s long lifespan and stable operation. Its 2,500,000-hour MTBF rating reflects a build quality suited for continuous enterprise use.

Ideal uses and environments

This hard drive is a strong choice for data centers, cloud service providers, and enterprise IT teams managing large-scale storage needs. It works well in dense storage arrays, scale-out file systems, and high-throughput backup targets. Organizations requiring secure, high-capacity storage with reliable performance will find this drive fits naturally into their infrastructure.