Seagate ST12000NM007H Exos X24 12TB 3.5-Inch SAS 12Gb/s HDD ISE

Seagate ST12000NM007H Exos X24 12TB SAS Enterprise Hard Drive (3.5")

The Seagate® Exos® X24 ST12000NM007H is a high-capacity 12TB 3.5-inch enterprise HDD built for demanding data center environments where performance, reliability, and scalability matter. Designed for hyperscale and massive scale-out deployments, this SAS hard drive supports high-density storage architectures while maintaining consistent throughput for large workloads.

With a 12Gb/s SAS interface, 7200 RPM performance, and a large 512MB cache, the Exos X24 is well-suited for enterprise storage arrays, RAID configurations, distributed file systems, and backup/restore workflows. It also includes Seagate Instant Secure Erase (ISE) and Seagate Secure™ features to support security-focused operational requirements in modern infrastructure.

Key Features

• 12TB Enterprise Capacity: Designed to maximize rack-space efficiency and support large-scale storage growth in data centers and cloud environments.
• 12Gb/s SAS Connectivity: High-speed SAS interface supports modern enterprise backplanes with backward compatibility across 12/6/3Gb/s.
• 7200 RPM Performance: Delivers responsive performance for mixed workloads and high-capacity density RAID storage.
• 512MB Multisegmented Cache: Helps optimize data flow and improve performance consistency across enterprise workloads.
• Helium-Sealed Drive Design: Built to support high-capacity engineering in a 3.5-inch form factor.
• CMR Recording Technology: Conventional Magnetic Recording (CMR) supports predictable write behavior for enterprise and RAID use.
• Dual-Port SAS: Dual interface ports support high-availability configurations in enterprise systems.
• Data Integrity Protection: Supports Protection Information (T10 DIF) to help reduce the risk of data corruption in enterprise storage paths.
• Seagate Instant Secure Erase (ISE): Supports secure erase workflows for lifecycle management and decommissioning.

Technical Specifications

• Model: ST12000NM007H
• Series: Seagate Exos X24
• Capacity: 12TB
• Form Factor: 3.5-inch
• Interface: SAS 12Gb/s (12.0 / 6.0 / 3.0 Gb/s)
• Interface Ports: Dual
• Spindle Speed: 7200 RPM
• Cache: 512MB (multisegmented)
• Recording Technology: CMR
• Max Sustained Transfer Rate (OD): 285 MB/s (272 MiB/s)
• Average Latency: 4.16 ms
• Random Read/Write 4K QD16 (WCD): 168 / 550 IOPS
• MTBF: 2,500,000 hours
• AFR (24x7 Operation): 0.35%
• Nonrecoverable Read Errors: < 1 in 10E15
• Sector Sizes (512e): 512 / 520 / 528 bytes
• Sector Sizes (4Kn): 4096 / 4160 / 4224 bytes
• Operating Temperature: 50°F to 140°F (10°C to 60°C)
• Power Supply Requirements: +12V and +5V
• Idle Power (Average): 6.5W
• Max Operating Power (Random 4K/16Q): 9.8W (read/write), 8.2W
• Rotation Vibration (20-1500 Hz): 12.5 rad/sec²
• Shock, Operating (2ms Read/Write): 40 Gs
• Shock, Nonoperating (2ms): 200 Gs
• Security: Seagate Instant Secure Erase (ISE); RSA 3072 firmware verification (SD and D)
• Additional Features: PowerChoice™ idle power technology, PowerBalance™ power/performance technology, hot-plug support, low halogen
• Warranty: 5 Years