Seagate ST12000NM002H 12TB Exos X24 7200RPM SATA 3.5" Enterprise HDD

Seagate Exos X24 12TB Enterprise SATA Hard Drive (ST12000NM002H)

The Seagate Exos X24 ST12000NM002H is a 12TB, 3.5-inch enterprise hard drive engineered for always-on, high-density storage environments. Built with a helium sealed-drive design and Conventional Magnetic Recording (CMR), it’s designed to deliver consistent performance and dependable capacity for modern data center and enterprise workloads.

With a 7200RPM spindle speed, SATA 6Gb/s interface, and a large 512MB multisegmented cache, this Exos X24 HDD supports fast sustained transfers and responsive random I/O—ideal for RAID storage, scale-out architectures, and backup systems where performance and uptime matter. It also includes Seagate Instant Secure Erase (ISE) functionality to support secure drive sanitization workflows in managed environments.

Key Features

• 12TB Enterprise Capacity: High-capacity 3.5" HDD designed for space-efficient rack deployments and large data volumes.
• Helium Sealed-Drive Design: Built for efficiency and reliable operation in dense storage configurations.
• CMR Recording Technology: Conventional Magnetic Recording supports predictable performance for RAID and enterprise workloads.
• SATA 6Gb/s Connectivity: Compatible with common enterprise and server storage infrastructure with 6.0/3.0 Gb/s support.
• 512MB Multisegmented Cache: Helps improve responsiveness and sustained performance under mixed workloads.
• Instant Secure Erase (ISE): Supports secure erase processes for data lifecycle management in enterprise environments.
• High Reliability for 24/7 Operation: Rated for 8760 power-on hours per year with 2.5M-hour MTBF and 0.35% AFR.
• Power Management Technologies: Includes PowerChoice™ idle power technology and PowerBalance™ power/performance tuning.
• Hot-Plug Support: Designed to support hot-swap workflows in compatible systems.
• Firmware Security Verification: RSA 3072 firmware verification listed for SD and D.

Technical Specifications

• Model: ST12000NM002H (Seagate Instant Secure Erase / ISE)
• Capacity: 12TB
• Form Factor: 3.5-inch
• Interface: SATA 6Gb/s (6.0, 3.0)
• Spindle Speed: 7200RPM
• Cache: 512MB (multisegmented)
• Max Sustained Transfer Rate (OD): 285 MB/s (272 MiB/s)
• Random Read/Write 4K QD16 WCD: 168/550 IOPS
• Average Latency: 4.16 ms
• Sector Size: 512e (512 bytes/sector) and 4Kn (4096 bytes/sector)
• Nonrecoverable Read Errors: <1 in 10E15
• MTBF: 2,500,000 hours
• AFR (24/7): 0.35%
• Power (Idle Avg): 6.3W
• Power (Max Operating, Random 4K/16Q): 8.9W (read), 7.1W (write)
• Power Supply Requirements: +12V and +5V
• Operating Temperature: 50°F to 140°F (10°C to 60°C)
• Operating Shock (2ms Read/Write): 40 Gs
• Nonoperating Shock (2ms): 200 Gs
• Rotation Vibration (20–1500 Hz): 12.5 rad/sec²
• Interface Ports: Single
• Super Parity: Yes
• Low Halogen: Yes