Product Specifications

Seagate Exos X24 ST12000NM007H 12TB 3.5-Inch Enterprise SAS Hard Drive

Product Overview

The Seagate Exos X24 (ST12000NM007H) is a next-generation enterprise-class 3.5-inch hard drive built for hyperscale data centres and mission-critical storage workloads. With a 12TB storage capacity and a high-speed SAS 12Gb/s interface, this drive delivers superior throughput, dual-port redundancy, and outstanding reliability for large-scale cloud infrastructure, enterprise servers, and mass-capacity storage arrays.

Part of Seagate's most advanced Exos lineup, the X24 is built on a globally proven platform deployed by leading cloud service providers worldwide. Featuring a helium-sealed CMR design, a 512MB multisegmented cache, and a 2.5 million-hour MTBF, it is purpose-built for continuous 24/7 operation in the most demanding environments.

Key Features

High-Capacity 12TB Storage

The Exos X24 delivers 12TB of enterprise storage per drive, maximising rack-space efficiency and enabling more petabytes per rack unit. This makes it an ideal choice for high-density deployments where capacity per rack is the primary constraint.

SAS 12Gb/s Dual-Port Interface with 285 MB/s Transfer Rate

Equipped with a SAS III 12Gb/s dual-port interface, the drive achieves a maximum sustained data transfer rate of up to 285 MB/s, delivering significantly higher bandwidth and lower latency compared to SATA-based drives. The dual-port design provides path redundancy, making it essential for high-availability enterprise storage environments.

Enterprise-Grade Reliability

Rated for a workload of 550TB/year with a 2.5 million-hour MTBF and an annualised failure rate (AFR) of just 0.35%, the Exos X24 is engineered for non-stop operation. Super Parity technology provides an additional layer of data integrity across large-scale RAID storage arrays, reducing the risk of data loss during drive rebuilds.

Helium-Sealed CMR Design

The hermetically sealed helium-filled enclosure combined with Conventional Magnetic Recording (CMR) technology delivers high areal density, reduced power consumption, lower operating temperatures, and minimal vibration — all critical advantages in dense rack-mounted server environments running 24/7.

Advanced Power Management

Seagate's PowerBalance™ and PowerChoice™ idle power technologies allow IT administrators to optimise the balance between performance and energy consumption, significantly reducing total cost of ownership (TCO) at scale across hyperscale and enterprise deployments.

Seagate Secure™ with Instant Secure Erase

The Exos X24 features Instant Secure Erase (ISE) for fast, compliant drive repurposing and disposal. Optional Self-Encrypting Drive (SED) and FIPS 140-3 validated models are available, offering government-grade data-at-rest protection and full compliance with corporate and federal security requirements.

FastFormat™ Technology

Supporting both 512e and 4Kn sector formats, the Exos X24 includes Seagate's FastFormat™ feature, which allows easy on-the-fly reformatting between sector sizes without drive replacement — providing flexibility for evolving infrastructure and compatibility requirements.

Hot-Plug Support

With native hot-plug support, the Exos X24 can be inserted or removed from a live system without downtime, making it ideal for enterprise SAS storage arrays and high-availability server environments that require continuous, uninterrupted operation.

Best-Fit Applications

• Hyperscale cloud data centres and object storage
• Enterprise SAN, NAS, and RAID storage arrays
• Distributed file systems including Hadoop and Ceph
• Online transaction processing (OLTP) and big data analytics
• Enterprise backup, restore, and virtual tape (D2D)
• Centralised surveillance and video analytics storage
• Engineering workstations, mainframes, and supercomputers

What's in the Box

• 1x Seagate Exos X24 ST12000NM007H 12TB 3.5-Inch SAS Hard Drive
• Product documentation / warranty card