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Seagate Exos X20 20TB Enterprise SATA Hard Drive – Model ST20000NM007D

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Seagate Exos X20 ST20000NM007D is a 20 TB enterprise-grade SATA 6 Gb/s hard drive (7200 RPM, 256 MB cache), built for massive-scale, reliable data storage in cloud and hyperscale environments.

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SKU: ST20000NM007D

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Description

The Seagate Exos X20 ST20000NM007D is a high-capacity, enterprise-class SATA hard disk drive engineered for hyperscale cloud storage, massive data center deployments, and big data environments. With 20 TB capacity, 7200 RPM rotational speed, and a 256 MB cache, it sustains data transfer rates up to ~285 MB/s. Proven helium-sealed design enables a workload rating of 550 TB/year and an MTBF of 2.5 million hours, setting a reliability standard for 24×7 operations. Advanced security includes Seagate Secure encryption, SuperParity protection, and PowerBalance & PowerChoice power optimization, yielding excellent watts-per-TB efficiency. Native support for 512e and 4Kn sector formats provides flexibility across legacy and modern storage systems. This drive delivers unmatched density, reliability, and operational efficiency for enterprise and cloud-scale infrastructure.

Specifications

Model / SKU Seagate ST20000NM007D (Exos X20 20 TB SATA Enterprise HDD)
Capacity 20 TB (20,000 GiB)
Interface 6 Gb/s SATA III
Buffer (Cache) 256 MB
Spindle Speed 7200 RPM
Supported Sector Formats 512e / 4Kn (FastFormat compatible)
Workload Rating 550 TB/year
MTBF 2,500,000 hours (≈ 2.5M hr)
Reliability Rating (AFR) 0.35%
Max Sustained Transfer Rate ~285 MB/s
Advanced Technologies Helium-sealed, SuperParity, PowerBalance, Seagate Secure
Hot-plug Support Yes
Power Consumption (idle/active) ~5 W idle; ~9 W active
Form Factor 3.5″ enterprise HDD
Warranty 5-year limited (typical)