Seagate Exos X20 20TB SAS 12Gb/s 7200RPM 256MB Cache (512e) 3.5-inch Internal Hard Drive – ST20000NM004D

Seagate Exos X20 20TB Enterprise SAS Hard Drive

The Seagate Exos X20 ST20000NM004D pushes enterprise hard drive capacity to 20TB while keeping the SAS 12Gb/s interface data centers rely on for high-throughput, multi-drive array configurations. It”s aimed at storage teams looking to increase capacity per rack unit without giving up the performance and reliability characteristics of a SAS-based enterprise drive.

Key Features

• 20TB of enterprise-grade storage capacity
• SAS 12Gb/s interface for high-throughput server environments
• 7200RPM spindle speed for consistent sustained performance
• 512e sector format for modern storage system compatibility

Product Specifications

• Model: Exos X20 (ST20000NM004D)
• Manufacturer: Seagate
• Capacity: 20TB
• Interface: SAS 12Gb/s
• Spindle Speed: 7200RPM
• Cache: 256MB
• Sector Format: 512e
• Form Factor: 3.5-inch
• Drive Class: Enterprise hard drive

Use Cases

• High-capacity enterprise storage arrays requiring SAS connectivity
• Data center capacity expansion aiming to maximize storage per rack unit
• Backup and nearline storage tiers behind primary flash storage
• Large-scale archival and surveillance storage deployments

Compatibility

Fits standard 3.5-inch drive bays and SAS 12Gb/s backplanes in enterprise servers and storage arrays.

Frequently Asked Questions

Why choose SAS over SATA at this capacity?

SAS interfaces generally offer better throughput and multi-drive array support, which matters more as drives scale up in capacity and array size.

Is this drive rated for continuous operation?

Yes, it”s built as an enterprise-class drive intended for 24/7 duty-cycle environments.

For storage teams looking to squeeze more capacity out of every rack unit, the Exos X20 delivers enterprise SAS reliability at a scale built for the densest data center deployments.