Seagate Exos Enterprise Hard Drives

Every Exos generation — hyperscale nearline X-series to 15K mission-critical E-series

About Exos Enterprise Drives

Exos is Seagate's data-center flagship — 2.5 million-hour MTBF, 550 TB/year workload rating, and the drive family behind most of the world's hyperscale storage. We stock the full Exos range across every generation, searchable by ST part number, in both SATA (6Gb/s) and SAS (12Gb/s) interfaces.

Exos X-Series — Nearline Capacity

7,200 RPM 3.5-inch helium and air drives from Exos X10 (10 TB) through X16, X18, X20, X22 and X24 (24 TB) — part numbers ST10000NM through ST24000NM. 512e/4Kn formats, optional SED encryption, dual-port SAS variants for JBOD and array duty.

Exos E-Series — Performance & Legacy Arrays

The workhorses OEMs built arrays around: Exos 7E8 and 7E10 (4–10 TB nearline, our deepest E-series stock), 15E900 (15K RPM 300–900 GB SFF) and 10E2400 (10K 2.4 TB with enhanced cache). When an array vendor quotes months of lead time on an EOL drive, this is where you find it.

Need a specific format — 512e vs 4Kn, SED, or dual-port SAS? Every listing carries the exact ST number and format. Ask for a bulk quote on 10+ drives with matched firmware.

Featured Exos Enterprise Drives Products

Browse all 499 Exos Enterprise Drives SKUs.

Frequently Asked Questions

What is the difference between Seagate Exos 7E8 and 7E10?

Both are 7,200 RPM nearline enterprise drives. The 7E8 tops out at 8 TB (ST8000NM...) with 256 MB cache; the 7E10 extends to 10 TB with updated platters and firmware. Both offer SATA 6Gb/s and SAS 12Gb/s variants, 512e or 4Kn sector formats, and the same 2.5M-hour MTBF rating. For array rebuilds, match the exact ST part number of the existing members.

Exos vs IronWolf Pro — which for a NAS?

IronWolf Pro is designed for 8-24 bay NAS enclosures with rotational-vibration sensors and 300 TB/yr workload rating. Exos is rated for 550 TB/yr and unlimited bay counts, at a similar or lower price per TB. For heavy-duty or business NAS use, Exos is usually the better buy; IronWolf Pro runs slightly quieter and cooler for office environments.

Can I mix 512e and 4Kn Exos drives in the same RAID array?

No — all members of a RAID virtual disk must share the same logical sector format. 512e drives emulate 512-byte sectors for legacy compatibility; 4Kn drives expose native 4K sectors and require OS/controller support (UEFI boot, modern HBAs). Check the existing array format before ordering; the ST part number suffix distinguishes them.

Is a used or refurbished Exos drive reliable?

Enterprise drives are engineered for 5+ years of 24/7 duty. Our refurbished Exos drives are wiped, surface-tested, SMART-verified with hours reported, and covered by our warranty. For RAID arrays we recommend consistent condition across members — we can supply matched sets on request.

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