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Key Features
Compatibility
Product Description
The Seagate Exos X24 Enterprise Hard Drive delivers hyperscale-ready capacity and consistent performance for dense data-centre applications. This 20TB, helium-sealed 3.5-inch nearline drive spins at 7200 RPM with a SATA III interface, fitting a wide range of rack, array, and server platforms. Engineered for big-data workloads, the Exos X24 combines high sustained transfer rates with enhanced multi-segment caching for lower latency and repeatable response times, backed by enterprise-grade reliability and a 5-year limited warranty.
Key Features
- 20TB capacity in a 3.5-inch helium-sealed nearline form factor for high rack-space efficiency
- 7200 RPM spindle speed with sustained transfer rates up to 285 MB/s for large sequential workloads
- 512 MB multi-segmented cache for improved latency and repeatable response times
- SATA III (6 Gb/s) interface for broad server and array compatibility
- Enterprise reliability: 2.5 million hour MTBF and rated for 550 TB/year workload
- 5-year limited manufacturer warranty for extended protection
- PowerChoice and PowerBalance technologies to improve power efficiency and IOPS per Watt
Package Includes
- Seagate Exos X24 20TB 3.5-inch HDD (SATA)
- 5-year limited manufacturer warranty documentation
Is this drive suitable for hyperscale and large-scale data centre deployments?
Yes. The Exos X24 is designed for hyperscale applications and massive scale-out environments, with 20TB capacity, high sustained transfer rates, and enterprise-class reliability.
What interface does this drive use?
The Exos X24 20TB uses a SATA III (6 Gb/s) interface, suitable for standard server and RAID array SATA controllers.
How reliable is the drive and what warranty is provided?
The drive is rated at 2.5 million hours MTBF with a workload rating of 550 TB/year. Seagate provides a 5-year limited warranty.
What performance can I expect for sequential transfers and random I/O?
Maximum sustained transfer rates reach up to 285 MB/s. Random 4K IOPS (QD16) are specified at around 168 read / 550 write, with average latency around 4.16ms.
Are there any thermal or power considerations to plan for?
Typical idle power is around 6.3W and active power ranges up to about 8.9W. Operating temperature range is 5 to 60 degrees Celsius; ensure adequate cooling and both +12V and +5V power rails in your chassis.
Specifications
| Capacity | 20TB |
| Form Factor | 3.5-inch nearline HDD (helium-sealed) |
| Recording Technology | CMR (Conventional Magnetic Recording) |
| Spindle Speed | 7200 RPM |
| Interface | SATA III (6 Gb/s) |
| Max Sustained Transfer Rate | Up to 285 MB/s |
| Cache | 512 MB multi-segmented cache |
| Random 4K (QD16) IOPS | ~168 read / 550 write |
| Average Latency | ~4.16ms |
| Rated Workload | 550 TB/year |
| MTBF | 2,500,000 hours |
| Nonrecoverable Read Errors | <1 in 10^15 bits read |
| Power (typical) | Idle ~6.3W; Active up to ~8.9W |
| Power Supply | +12V and +5V |
| Operating Temperature | 5°C to 60°C |
| Dimensions | 147 x 101.85 x 26.1mm |
| Weight | ~685g |
| Warranty | 5-year limited warranty |
Compatibility
| Windows PC / Server | Windows 10 (64-bit), Windows 11, Windows Server 2016/2019/2022 with a standard SATA III host controller |
| Mac | Compatible with Macs providing a supported internal SATA interface or an external enclosure that exposes SATA drives |
| Other OS | Modern Linux distributions (kernel 4.x and newer) supporting standard SATA block devices, e.g. Ubuntu LTS, RHEL/CentOS |
| Not Compatible | Systems that only accept M.2 or U.2 drives, or legacy IDE-only motherboards, unless paired with an appropriate adapter or enclosure |
Shipping & VAT
- Free UK Shipping: Delivered in approx. 2 working days
- Express Options: Faster methods available at checkout
- Free Shipping to Ireland: For orders over £100.00
- International Delivery: Times vary by destination; shipped via FedEx or DHL
- 30-Day Returns: Return within 30 days from order date
- UK, Ireland and EU Customers: Free return label provided
- Full Return Policy: Read Here
- Full Shipping Details: Read Here
VAT & Duties Information
UK & EU Customers: The price shown on our website is the final price you pay. No additional VAT, customs duties, or import fees will be charged upon delivery.
Orders are dispatched from Northern Ireland, allowing us to serve customers across the United Kingdom and the European Union without unexpected import charges.
Non-UK and non-EU destinations: Local taxes, customs duties, and import fees may apply and are the responsibility of the recipient.
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Customer Service
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Free number UK: 08001954072
International: +442838341148
Phone Line Opening Hours
- Monday - Friday: 09:00-17:00
