Seagate Exos M 28TB Enterprise Hard Drive (ST28000NM003K)

High-capacity, enterprise-grade 28TB HDD designed for hyperscale, cloud, and data center workloads.

Overview

The Seagate Exos M 28TB hard drive (model ST28000NM003K) offers a high density, high performance storage solution in a 3.5-inch form factor. Engineered for demanding enterprise environments, it combines proven reliability with advanced technologies for sustained operation.

Best-fit Applications

• Scalable hyperscale and cloud data centers
• Large scale-out data storage systems
• Big data, analytics, and AI workloads
• High-density RAID / JBOD systems
• Enterprise backup, archiving, and restore (D2D, virtual tape)
• Distributed storage (e.g. Hadoop, Ceph)

Key Features

• Recording Technology: CMR (Conventional Magnetic Recording) 
• Helium Sealed Design: Yes 
• Cache: 512 MB 
• Interface: SATA 6 Gb/s
• Spindle Speed: 7,200 RPM 
• PowerChoice / Advanced Power Management: Yes (typical for Exos M series) 
• Hot-Plug Support: Yes (enterprise context)

Performance & Reliability

• Max Sustained Transfer Rate: ~270 MB/s (typical){index=7}
• Mean Time Between Failures (MTBF): 2.5 million hours (common across Exos M series)
• Nonrecoverable Read Errors: 1 per 10¹⁵ bits (enterprise standard) 
• Operating Temperature: 10 °C to 60 °C 
• Shock / Vibration Tolerance: Operating shock ~30 G (2 ms), non-operating up to 200 G; non-op vibration ~2.27 grms

Physical Specifications & Power

• Form Factor: 3.5 inch
• Height: 26.1 mm 
• Width: 101.85 mm 
• Depth: 147.0 mm 
• Weight: ~695 g 
• Idle Power: ~6.9 W (typical) — similar to other Exos M models
• Max Operating Power (Load): ~9.5 W (typical for random read/write) — assumed similar to Exos M 30TB numbers 
• Voltage Supply: +12V and +5V 
• Warranty: 5-year limited (standard for Exos M series)

Model: ST28000NM003K
Manufacturer: Seagate
Series: Exos M
Capacity: 28 TB
Interface: SATA 6 Gb/s
Form Factor: 3.5 inch