Seagate Exos X24 Enterprise Internal Hard Drive (3.5 inch)

Capacity

Price

$709.99

Per TB$29.58

AmazonBuy on Amazon

Reasons to buy

  • High capacity per bay for 3.5 inch enterprise servers and JBOD shelves
  • Strong on-paper endurance story with a 550 TB per year workload rating and 2.5M hour MTBF on Seagate materials
  • 512 MB cache and 7200 RPM operation on X24 spec comparisons from Seagate
  • Five year limited warranty is common on retail listings, which helps total cost of ownership math

Reasons to avoid

  • Enterprise class acoustics can be louder than NAS tuned drives in quiet rooms
  • SATA and SAS SKUs share one family name, so buying the wrong interface wastes a slot
  • Very large single-drive capacity increases blast radius if you do not have backups or parity
  • Amazon listings vary by seller; verify packaging and warranty start dates on receipt
Seagate Exos X24 Enterprise Internal Hard Drive (3.5 inch) (24 TB) — product photo
24 TB

Specifications

rpm
7200
series
Exos X24
cache mb
512
interface
SATA 6 Gb/s or SAS 12 Gb/s depending on part number
recording
CMR
form factor
3.5 inch
manufacturer
Seagate
warranty notes
Seagate limited warranty typical for Exos enterprise; interface and SKU may affect terms.
warranty years
5
workload rate tbw per year
550

Researched and maintained by Hard Drive Prices Editorial Team. · Updated April 9, 2026

What you're getting

Seagate Exos X24 spans high-capacity 3.5 inch enterprise hard drives built for racks that need many terabytes per slot. The line targets hyperscale and data center style deployments where density, predictable throughput, and long running duty cycles matter more than consumer packaging flash.

Across the X24 generation Seagate publishes up to about 285 MB/s sustained transfer rates and a 550 TB per year workload rating alongside a 2.5 million hour MTBF figure on datasheets aimed at cloud and enterprise buyers. Cache is typically 512 MB on these SKUs, and the spindle speed is 7200 RPM in product tables that compare Exos families.

Most listings carry a five year limited warranty, but warranty terms depend on region and seller, so confirm coverage on the serial you receive. Helium sealed designs show up in Seagate comparison tables for the X class, which helps explain weight and power goals versus older air filled designs at similar form factors.

Capacities and host interfaces are not interchangeable without checking the exact part number. Some variants use SATA at 6 Gb/s while others use SAS at 12 Gb/s, so match the model on the label to your HBA, backplane, and cabling before you buy.

Buying context

Typical value (not live pricing)

Exos X24 usually trades at a premium per terabyte versus consumer drives, but often undercuts the very highest capacity tiers on a dollars per TB basis when sales hit. Treat any dollar figure as a snapshot and confirm the live cart price on Amazon or your distributor.

Where this line often shows up

  • Hyperscale and cloud style servers that prioritize TB per rack unit
  • RAID 6 or RAIDZ2 arrays where rebuild time grows with drive capacity
  • ZFS and Unraid builds that need predictable latency under long sequential writes
  • JBOD shelves attached to LSI/Broadcom style HBAs with verified drive compatibility

Features

  • Helium sealed 3.5 inch designs appear in Seagate Exos comparison content for the X series versus air filled lines.

  • 550 TB per year workload rating paired with 2.5 million hour MTBF on enterprise datasheets for this generation.

  • Up to about 285 MB/s sustained transfer rates in Seagate comparison tables for Exos X24 versus older Exos tiers.

  • 512 MB cache on Exos X24 rows in Seagate comparison tables, which helps bursty sequential work.

  • FastFormat support shows up in Seagate marketing for Exos X, useful when your controller expects a specific sector format.

  • Seagate Secure related features are referenced for enterprise Exos drives for organizations that need hardware aligned security workflows.