Seagate Exos
A market‑leading enterprise SATA HDD built for hyperscale cloud and massive scale‑out data centers. Delivers high‑capacity storage with 7200 RPM performance and SATA 6Gb/s interface. Features PowerBalance™ technology for optimized Watts/TB and helium sealed‑drive design for lower power and weight. Available in CMR capacities up to 26TB with 512MB cache. Ideal for big data applications, distributed file systems, and enterprise backup.
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Key Features
Unmatched capacity
Up to 32TB of storage in an industry-standard 3.5-inch form factor delivers capacity at scale while optimizing space utilization in data centers.
Breakthrough areal density
Exos hard drives now boast an industry-leading 3TB per platter, enabling massive storage capacity in the same footprint for maximized AI-driven data center efficiency.
Time-tested excellence meets next-gen innovation
The latest generation of Exos blends 90% of trusted, proven components from previous generations with cutting-edge Mozaic™ technology.
Enterprise-class reliability
Designed for the stringent demands of cloud service providers and enterprise data centers, Exos drives deliver durable, always-on performance essential for critical enterprise applications and backed by a 5-year limited warranty and 2.5M-hr MTBF rating.
Proven helium side-sealing weld technology
For added handling, robustness, and leak protection.
Sustainability
Built with more renewable energy and recycled materials than any previous Seagate product, the latest generation of Exos drives enable businesses to align with their sustainability initiatives while reducing environmental impact. Additionally, the PowerBalance™ feature optimizes watts per terabyte.
Compatibility and interoperability
Maintains the same form factor, interface, and cooling as previous generations, simplifying integration into existing infrastructure and reducing upgrade complexities.
Efficient cooling
Engineered for optimal heat dissipation, ensuring reliable performance without increasing cooling requirements in your data center.
Seagate Secure™
Built-in reliable data protection enhances security, safeguarding your data against threats in enterprise environments.
Seagate Exos product details
Official product imagery — specifications, design and interfaces at a glance.
Product Information
A market‑leading enterprise SATA HDD built for hyperscale cloud and massive scale‑out data centers. Delivers high‑capacity storage with 7200 RPM performance and SATA 6Gb/s interface. Features PowerBalance™ technology for optimized Watts/TB and helium sealed‑drive design for lower power and weight. Available in CMR capacities up to 26TB with 512MB cache. Ideal for big data applications, distributed file systems, and enterprise backup.
Use the media gallery, selected capacity and specification matrix to confirm fit before sending a quote or sample request.
Technical Specifications
| Form Factor | 3.5-inch |
|---|---|
| Interface | SATA 6 Gb/s |
| Rotational Speed | 7200 RPM |
| Cache Size | 512MB |
| Sustained Transfer Rate | up to 250MB/s |
| Average Latency | 4.16 ms |
| Sector Format | 512e/4KN |
| MTBF | 2,000,000 hours |
| AFR (Annualized Failure Rate) | 0.0044 |
| Power (Active / Idle) | 9.4W/5.16W |
| Operating Temperature | 5 °C to 60 °C |
| Weight | 620g |
| Warranty | 5-year limited |
User Guide / Documents
Manufacturer datasheets, manuals and compliance files are shared only when the approved file is available for the confirmed RFQ.
Warranty & Support
Warranty, firmware, batch documentation and RMA terms are confirmed in the written quotation or sales contract. ByteExo coordinates after-sales support through the listed manufacturer channel and the customer's confirmed order record.
Procurement FAQ
What SATA HDD series do you offer and what are their differences?
We offer three enterprise SATA HDD series: WD Gold (4TB–24TB, CMR, up to 279 MB/s), Seagate Exos (4TB–24TB, up to 285 MB/s, 2,500,000-hour MTBF on higher capacities), and Toshiba MG (4TB–24TB, CMR, up to 295 MB/s on the MG11). All use 3.5-inch form factor, SATA 6Gb/s interface, and 7200 RPM, making them interchangeable in most server bays.
What is CMR recording technology and why does it matter?
CMR (Conventional Magnetic Recording) writes each track in a fixed, non-overlapping pattern — the most reliable technology for enterprise workloads with random writes, RAID rebuilds, and sustained write operations. All WD Gold and Toshiba MG drives use CMR. We do not supply SMR (Shingled Magnetic Recording) drives for enterprise use, as SMR has well-documented limitations in RAID and write-intensive environments.
What is the maximum capacity available?
All three series offer up to 24TB per drive: Toshiba MG11 (24TB), Seagate Exos X (24TB+), WD Gold (24TB). For higher density with dual-port redundancy, we recommend NL-SAS HDDs.
What is the sustained transfer rate?
Transfer rates range from 243 MB/s (Toshiba MG08 4TB) to 295 MB/s (Toshiba MG11 24TB). WD Gold reaches up to 279 MB/s; Seagate Exos up to 285 MB/s. Higher-capacity drives generally achieve higher sustained throughput due to increased areal density.
Can these drives be used in RAID arrays?
Yes. All three series are designed and validated for enterprise RAID environments (RAID 0/1/5/6/10/50/60). CMR recording ensures predictable write behavior essential for RAID rebuild integrity. Cache sizes of 256MB–512MB per drive help sustain RAID performance under mixed workloads.
What is the MTBF and warranty?
WD Gold and Toshiba MG: 2,000,000–2,500,000 hours MTBF, 5-year warranty. Seagate Exos: 2,000,000–2,500,000 hours MTBF depending on capacity, 5-year warranty. All are rated for 24/7 continuous operation.
What is the power consumption?
Active power ranges from approximately 6.5W (WD Gold 16TB) to 11.8W (Seagate Exos 10TB). Idle power ranges from 3.3W to 8.3W. For high-density storage arrays with many drives, per-drive power budgeting is important.
Are these drives suitable for NAS or only for servers?
These are enterprise-class data center drives rated for 24/7 operation, not prosumer NAS drives. They exceed the workload ratings of consumer or NAS-grade drives (WD Red, Seagate IronWolf) and are the correct choice for corporate storage servers, SAN/NAS with enterprise controllers, and backup appliances requiring maximum reliability.
What sector formats are supported?
WD Gold: 512e / 4Kn (varies by model). Seagate Exos: 512e and 4Kn. Toshiba MG: primarily 512e. Please confirm your storage controller's sector format compatibility before ordering, particularly for 4Kn configurations.
What is the typical use case for these SATA HDDs?
Bulk capacity storage in data centers: cold and warm storage tiers, backup and archive targets, media storage, surveillance storage, and large-capacity NAS or SAN buildouts where cost-per-TB is the primary consideration. For latency-sensitive workloads, pair with our SSD options as a caching tier.
Compare Models in This Series
3 models — comparing key specifications to help with model selection.
| Model | Interface | Form Factor | Seq Read | Seq Write | Capacities | DWPD | MTBF |
|---|---|---|---|---|---|---|---|
| WD Gold | SATA 6 Gb/s | 3.5-inch | — | — | 4TB–24TB | — | 2,000,000 hours |
| Seagate Exos | SATA 6 Gb/s | 3.5-inch | — | — | 4TB–24TB | — | 2,000,000 hours |
| Toshiba MG | SATA 6 Gb/s | 3.5-inch | — | — | 4TB–24TB | — | 2,000,000 hours |
Brand-original, incoming-inspected
Every unit is brand-original from the listed manufacturer and incoming-inspected before dispatch. RFQ documentation can include manufacturer datasheets and compliance files when available.
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