Seagate Exos X20 20TB 3.5" SAS 12Gb/s SED Enterprise Hard Drive

20TB SAS Capacity With Built-In Self-Encryption

The Seagate Exos X20 20TB is a 3.5-inch enterprise hard drive with a 12Gb/s SAS interface. It is the Self-Encrypting Drive (SED) model of the Exos X20, which encrypts data in hardware for secure storage and fast, safe drive retirement. The helium-sealed drive spins at 7200 RPM with a 256MB cache and delivers sustained transfer rates of up to 285 MB/s using CMR recording.

Dual-port SAS supports multipath setups in compatible enclosures, and FastFormat lets you switch between 512e and 4Kn sectors. With 2.5 million hours MTBF and a 550TB/year workload rating, it suits enterprise storage arrays, backup targets and surveillance systems. Note that a SAS controller or SAS backplane is required, as SAS drives do not run from standard SATA ports.

Key Features

• SAS 12Gb/s Dual-Port: High availability in multipath enterprise arrays.
• Self-Encrypting Drive (SED): Hardware encryption with Seagate Secure.
• Up to 285 MB/s: 7200 RPM with a 256MB cache.
• Helium-Sealed CMR Design: Efficient and consistent at scale.
• Enterprise Reliability: 2.5M hours MTBF and a 550TB/year workload rating.

Specifications

• Capacity: 20 TB
• Series: Exos X20 (SED model)
• Form Factor: 3.5-inch
• Interface: SAS 12Gb/s, dual-port
• Rotational Speed: 7200 RPM
• Cache: 256 MB
• Sustained Transfer Rate: Up to 285 MB/s
• Recording Technology: CMR
• Sector Format: 512e / 4Kn (FastFormat)
• Encryption: Self-Encrypting Drive (SED)
• Workload Rating: 550 TB/year
• MTBF: 2.5 million hours
• Dimensions: 147 x 101.8 x 26.1 mm
• Weight: 670 g
• Model: ST20000NM003D

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