Seagate IronWolf Pro ST16000NT001 16TB 3.5 inch SATA 6Gb/s NAS Hard Drive CMR 72he Unlimited Bays
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Seagate
Seagate IronWolf Pro ST16000NT001 16TB 3.5 inch SATA 6Gb/s NAS Hard Drive CMR 72he Unlimited Bays
€976.67 inc. VAT
ST16000NT001
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Seagate IronWolf Pro 16TB — ST16000NT001 NAS Hard Drive
16TB 3.5" SATA 6Gb/sUnlimited Bays, 550 TB/Year2.5M-Hour MTBF, 24x73-Year Rescue Included
The Seagate ST16000NT001 is a 16 TB 3.5-inch IronWolf Pro NAS hard drive built for multi-bay network storage that runs continuously — rated for a 550 TB annual workload, 8760 power-on hours a year and, unusually for a NAS drive, an unlimited number of drive bays. Seagate lists it under part number ST16000NT001 with EAN 8719706432290 and UPC 763649176276; the EAN on this listing is 8719706432290. It is a conventional-recording (CMR) helium drive at 7200 RPM with 256 MB of cache, rotational vibration sensors and AgileArray firmware, and it ships with three years of Rescue Data Recovery Services. It is built on Seagate’s conventional CMR platform rather than the newer HAMR one used at 30TB and above. Typically in stock with fast delivery across Cyprus.
Compatibility — check before buying:
NT is the current IronWolf Pro tier, and it is not the same as the older NE parts. Seagate’s own datasheet prints them side by side: NT is rated at 550 TB per year with a 2,500,000-hour MTBF and unlimited bays, while NE at the same capacity is 300 TB per year, 1,200,000 hours and a 24-bay ceiling. Listings that quote 300 TB or a bay limit against an NT part number are carrying the older figures across. One documentation quirk on this capacity: the datasheet gives the sustained transfer rate as 270 MB/s while Seagate’s own product manual says 259 MB/s. Both figures are official; the datasheet is the retail-facing one and is what we publish. Two more things to know: NTZ is a different SKU, not a synonym — those are Seagate’s frustration-free-packaging versions and carry their own EANs; and Rescue Data Recovery, while bundled for three years, is covered by Seagate’s footnote that the service is not available in all countries, so confirm availability rather than relying on it. No self-encrypting version is published under this part number.
Best For
✓ Multi-bay NAS enclosures running 24 hours a day
✓ RAID arrays where rebuild reliability matters — 1 unrecoverable error per 10E15 bits
✓ Small-business file, backup and virtualisation storage
✓ Racks and towers with vibration from many spindles — RV sensors are fitted
✓ Media libraries and archives that keep growing
✓ Systems using IronWolf Health Management on supported NAS platforms
Key Features
Unlimited bays and a 550 TB annual workload
This is the specification that separates IronWolf Pro NT from both consumer drives and the older NE generation. Seagate publishes unlimited for the maximum number of drive bays, a 550 TB per year workload rate limit and 8760 power-on hours — a full year of continuous operation. Rotational vibration sensors are fitted, which is what makes dense multi-drive chassis practical.
2.5 million hours MTBF, 1 error per 10E15 bits
MTBF is 2,500,000 hours with a 0.35% annualised failure rate, and the unrecoverable read error rate is one sector per 10E15 bits read — ten times better than desktop-class drives. In a large RAID set that second figure is the one that decides whether a rebuild completes cleanly, which is the practical reason to buy a Pro drive rather than a consumer one.
CMR and helium, with 256 MB of cache
This is a conventional magnetic recording drive in a helium-sealed enclosure at 7200 RPM, with 256 MB of cache and a sustained transfer rate of 270 MB/s at the outer diameter. Sector format is 512e. The all-CMR construction is the reason sustained multi-stream writes and RAID rebuilds behave predictably, which is exactly where SMR drives fall down.
AgileArray firmware and IronWolf Health Management
AgileArray adds dual-plane balancing, RAID-optimised error recovery and time-limited error recovery so the drive does not drop out of an array while retrying a sector. IronWolf Health Management, supported on leading NAS platforms, reports on prevention, intervention and recovery. Three years of Rescue Data Recovery Services are bundled, subject to regional availability.
Technical Specifications
Frequently Asked Questions
Singular Expert Insight
IronWolf Pro sits between a consumer NAS drive and a data-centre Exos, and the NT generation moved that line meaningfully. The 550 TB annual workload and the unlimited bay rating are the same numbers Seagate quotes for Exos — what you give up against Exos is the SAS option, the self-encrypting variants and some power-management granularity, and what you gain is three years of Rescue Data Recovery, which Exos does not include at all. At 16 TB this is the capacity most small-business arrays settle on, and it is the point where the 256 MB cache still applies — the 24 TB and 30 TB parts double it. Compare capacities across our NAS hard drives, and if the array is destined for a rack rather than a NAS chassis, look at the enterprise and server hard drives instead.
Buyer’s Guide
Buy it if
You are filling a multi-bay NAS that runs continuously and you want the endurance to match: 550 TB per year, unlimited bays, 2,500,000-hour MTBF, one unrecoverable error per 10E15 bits, rotational vibration sensors and AgileArray firmware, with three years of Rescue Data Recovery bundled. At 16 TB it is the practical middle of the range for a four- to eight-bay business NAS.
Skip it if
The drive is going into a desktop, a single-bay enclosure or a backup drive that spends most of the week powered down — a consumer drive costs less and the Pro endurance would go unused. Skip it too if the target is a surveillance recorder, where SkyHawk AI is the correct family, or a SAS backplane, since IronWolf Pro is SATA only.
Also consider
ST18000NT001 for 18 TB on the same platform, or ST24000NT002 for 24 TB with a larger 512 MB cache. ST30000NT011 is the 30 TB drive on Seagate’s Mozaic 3+ HAMR platform. Beware the older ST16000NE000 at the same capacity: it is the previous NE generation, rated at only 300 TB per year with a 24-bay ceiling. The ST16000NTZ01 is the same drive in frustration-free packaging, with its own EAN.
Features - Seagate - ST16000NT001
Form Factor
- 3.5",
- Internal
Interface
- SATA
More Details
Product Code
04:415265
EAN Code
8719706432290
Manufacturer
Seagate
Technical specifications
Capacity
16TB