Previous
Next
Seagate

SEAGATE Exos X24 20TB HDD - SAS 12Gb/s, 7200rpm, 512MB cache, 3.5in, 24x7, 512e, 4Kn - ST20000NM007H (Boxed)

SKU 29835 Brand Seagate EAN13 8719706431378
Seagate Exos X24 20TB enterprise HDD: SAS 12Gb/s, 7200 RPM, 512MB cache, 3.5-inch form factor. Designed for 24x7 operation in data centers with 512e/4Kn formats, helium-sealed for reliability and efficiency.
Storage (SSD & HDD) - Device Type Internal HDD
Storage (SSD & HDD) - Capacity 20TB
Storage (SSD & HDD) - RPM (HDD) 7200 RPM
Storage (SSD & HDD) - Interface SAS 12Gb/s
Storage (SSD & HDD) - Cache (HDD) 512MB
Storage (SSD & HDD) - Form Factor 3.5 inch

The Seagate Exos X24 20TB is a high-capacity enterprise hard drive built for mission-critical applications in data centers, cloud storage, and hyperscale environments. Featuring SAS 12Gb/s interface, 7200 RPM spindle speed, and 512MB cache, it delivers sustained transfer rates up to 285 MB/s for large data workloads. Helium-sealed design reduces power consumption and weight while enhancing reliability with a 2.5 million hour MTBF and 550TB/year workload rating.

Optimized for 24x7 operation, this 3.5-inch drive supports both 512e and 4Kn sector formats, making it compatible with modern servers and storage arrays. PowerBalance™ technology optimizes watts per TB, and advanced caching ensures low latency for mixed workloads. Ideal for rack-space efficiency with market-leading capacity per drive.

  • Capacity: 20TB CMR
  • Interface: Dual-port SAS 12Gb/s
  • Performance: 7200 RPM, 285 MB/s sustained
  • Cache: 512MB
  • Warranty: 5 years
  • Weight: 670g (drive only)
Model NumberST20000NM007H
Capacity20TB
InterfaceSAS 12Gb/s
Form Factor3.5 inch
Spindle Speed7200 RPM
Cache Buffer512MB
Max Sustained Transfer Rate285 MB/s
Average Latency4.16 ms
Sector Sizes512e / 4Kn
Weight (drive)670g
Warranty5 years
Helium SealedYes