30TB Hard Drive Reference: Exos M, IronWolf Pro and What Seagate Has Said

How 30TB reached buyers: three dated Seagate statements

Seagate's releases put hyperscale cloud customers first, in January 2024, and store and channel availability in July 2025.

The recording story is consistent across them. The 2024 release says the Mozaic 3+ platform includes Seagate's implementation of heat-assisted magnetic recording, or HAMR. The July 2025 release says the launch drives are built on Mozaic3+ and powered by HAMR. Seagate's own product wording spells the platform name both ways, so do not read Mozaic 3+ and Mozaic3+ as two technologies.

30TB hard drive price on Amazon.co.uk

Only drives catalogued at exactly 30 TB appear here. Our catalogue rejects external drives and multi-packs, so each row is a single internal drive. The row count moves as offers come and go, so what the table holds on a given visit says nothing about whether Seagate still makes a drive. The listings we follow carry three part numbers: ST30000NM004K for the Exos M, plus ST30000NT011 and ST30000NTZ11 under the IronWolf Pro name. The first is on Seagate's sheet. For the other two, the number comes from the listing, because we have not found a Seagate document that prints an IronWolf Pro 30 TB part number.

In-stock alternatives

None of these is the product this page covers: they are what is in stock on Amazon.co.uk beside it right now. Each row says why it is listed. Check the interface, form factor and part number against your system before buying.

30TB hard drive Seagate specification: the Exos M row

Rebuild time is the number many buyers want at this size. At the stated maximum rate, a whole 30 TB drive takes 30,000,000,000,000 bytes / 275,000,000 bytes a second, which by our sum is 109,091 seconds, or about 30.3 hours. That is our arithmetic rather than a Seagate figure. It assumes the outer-diameter maximum holds across the whole drive with nothing else running, so a working array will take longer.

The fit question has a helpful line on the sheet. Seagate says Exos M maintains the same form factor, interface and cooling as previous generations, simplifying integration into existing infrastructure. Read that as a statement about the drive rather than your chassis. A later Seagate sheet, DS2045.4-2511, describes up to 32 TB in an industry-standard 3.5-inch form factor. Neither document checks a named server or enclosure, so confirm that your system supports a drive of this capacity.

30TB hard drive for NAS, including a UGREEN NAS

IronWolf Pro is the NAS-branded route to this capacity, and two NAS makers speak about it in the July 2025 release. A QNAP statement says that by integrating IronWolf Pro 30TB drives, QNAP delivers petabyte-scale, high-integrity storage. Evan Li of UGREEN says the drives "provide the robust foundation UGREEN NAS systems require". Neither statement names a machine.

For a UGREEN NAS, Seagate's IronWolf Pro page adds that IronWolf drives have been tested by leading NAS providers such as Asustor, QNAP and UGREEN for compatibility. That is evidence for the family, but the page we read does not name 30 TB or a UGREEN model. So we cannot tell you that any particular UGREEN machine takes this drive. Take the exact part number to UGREEN's own compatibility list before you commit.

The same page states up to 32 TB powered by CMR across IronWolf Pro. We have not found an IronWolf Pro 30 TB data sheet, so its workload rating and warranty stay off this page. A figure printed on the Exos M sheet is not evidence for the IronWolf Pro.

Seagate's recertified 30 TB part numbers

Seagate's recertified sheet prints two 30 TB numbers where the 24, 26 and 28 TB columns print three: ST30000NM000C and ST30000NM001C, with the top row of the 30 TB column empty. Both sit in a SATA 6 Gb/s table, at a stated 190 MB/s against the Exos M's 275 MB/s. The support page lists ST30000NM000C as Factory Recertified with a 6-month limited warranty.

These sheets describe products rather than Amazon.co.uk offers. The 28TB hard drive page explains what a used row does and does not prove, and refurbished enterprise hard drives covers buying this way more widely.

Is there a 30TB hard drive from anyone but Seagate?

We have not found a WD or Toshiba document for a 30 TB hard drive. That is a gap in our reading, not proof that nothing exists. The 26TB hard drive page sets out the WD sheets we have read. The 28TB hard drive page covers the next size down.