Seagate Exos X 28TB Internal HDD – 3.5″ SATA 6Gb/s, 7200RPM, 512MB Cache, 2.5M MTBF – ST28000NM003K
Overview
The Seagate Exos M ST28000NM003K is a high-capacity, high-reliability internal hard drive tailored for demanding enterprise environments like hyperscale data centers, AI workloads, and cloud infrastructure deployments.
Key Highlights
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Areal Density Breakthrough: First in its class to deliver up to 3 TB per platter, packing massive storage into a standard 3.5-inch form factor
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Capacity: Offers a substantial 28 TB of storage capacity, with architecture supporting up to 30 TB in the same form factor.
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Technology Blend: Combines 90% proven components from previous drives with Mozaic 3+ technology to enhance performance and dependability.
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Power Efficiency: Delivers up to 3× better efficiency per terabyte compared to earlier-generation drives, helping reduce infrastructure power and cooling costs.
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Enterprise-Class Reliability: Built for 24/7 continuous operation, with a high MTBF of 2.5 million hours and very low error rates.
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Sustainability: Manufactured using more renewable energy and recycled materials to align with eco-conscious IT strategies.
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Seagate Secure: Integrated data protection features provide additional security for enterprise environments.
Technical Specifications
| Specification | Details |
|---|---|
| Form Factor | 3.5-inch internal HDD |
| Interface | SATA 6 Gb/s (backwards-compatible with 3 Gb/s) |
| Spindle Speed | 7200 RPM |
| Cache | 512 MB multi-segmented |
| Average Latency | ~4.16 ms |
| Max Sustained Transfer | ~270 MB/s (~257 MiB/s) |
| Random 4K IOPS (QD16) | Read: ~170; Write: ~350 |
| Reliability (MTBF) | 2.5 million hours |
| AFR (Annualized Failure Rate) | 0.35% |
| Non-recoverable Errors | 1 per 10^15 bits read |
| Power Consumption | Idle: ~6.9 W; Max (random read): ~9.5 W |
| Environmental | Operating Temp: 10–60 °C; Shock (Op): 30 Gs; Non-Op: 200 Gs; Vibration (Non-Op): 2.27 gRMS |
| Physical Dimensions | 26.1 mm (H) × 101.85 mm (W) × 147 mm (D); Weight: ~695 g |
| Warranty | 5-year limited warranty |
| Security Features | Seagate Instant Secure Erase (ISE), RSA 3072 firmware verification, Hot-Plug support, PowerChoice, PowerBalance, SuperParity, Helium-sealed design, Low Halogen, Organic Solderability Preservative |
Ideal Use Cases
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Hyperscale and enterprise data centers, including AI clusters and large-scale cloud storage environments
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High-density storage arrays where energy efficiency, reliability, and integration compatibility matter
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Environments requiring secure data sanitation, efficient power-use, and simplified maintenance
Summary
The Seagate Exos M ST28000NM003K is a cutting-edge, enterprise-grade HDD that delivers:
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Massive 28 TB capacity in a common 3.5″ form factor
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Efficient performance with high, reliable throughput
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Peace of mind through robust reliability and security features
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Reduced operational costs via power efficiency and sustainable design
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