Seagate IronWolf Pro 4TB

Enterprise HDD

Part number ST4000NT001-3M2101 · IronWolf Pro series · SATA 6Gb/s (SATA III). If your machine is listed below, this drive is officially supported — not a forum workaround.

IronWolf ProNAS HARD DRIVE3.5" SATA HDDSEAGATE

Part of the Seagate IronWolf Pro series →

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103
Compatible NAS models
0 Syn · 103 QNAP · 0 Asus · 0 TM
By vendor
4 TB
Listed capacity
Seagate
Manufacturer
NAS Pro tier
Product line (manufacturer rating)
7200
Spindle speed (RPM)
CMR
Recording
256 MB
Cache
300 TB
Rated workload / year

Specifications are the manufacturer's published ratings for this product series; verify the exact part number before purchase.

Strong pick as a cold copy

Rated CMR (conventional magnetic recording) — the right recording type for a large cold copy. CMR keeps a full-library backup pass fast even at 16–24 TB, which is the whole point of the offline slot in a 3-2-1 plan: rotate two drives monthly, keep one powered off, and the backup tooling (Veeam, Duplicati, Hyper Backup, HBS 3) does the scheduling. Full rule and vendor tool table: 3-2-1 for NAS.

Compatibility verdict

It appears on the official compatibility lists of 103 machines and series — 103 QNAP. This is a Enterprise-class drive: rated for heavier sustained workloads than desktop drives. It is a strong pick for a NAS running 24/7, large-array rebuilds or camera workloads, and enterprise lines are also the drives most widely listed across all five vendors' HCLs. Its series rating is on file as CMR (conventional) — what RAID rebuilds and full-library copies want.

Compatible NAS models

QNAP HS-264 See its full HCL → QNAP HS-453DX See its full HCL → QNAP TL-D1600S See its full HCL → QNAP TL-D400S See its full HCL → QNAP TL-D800C See its full HCL → QNAP TL-D800S See its full HCL → QNAP TL-R1200C-RP See its full HCL → QNAP TL-R1200PES-RP See its full HCL → QNAP TL-R1200S-RP See its full HCL → QNAP TL-R1220Sep-RP See its full HCL → QNAP TL-R1600PES-RP See its full HCL → QNAP TL-R1620Sep-RP See its full HCL → QNAP TL-R400S See its full HCL → QNAP TR-002 See its full HCL → QNAP TR-004 See its full HCL → QNAP TR-004U See its full HCL → QNAP TS-1232PXU-RP See its full HCL → QNAP TS-1264U-RP See its full HCL → QNAP TS-1273AU-RP See its full HCL → QNAP TS-1273U-RP See its full HCL → QNAP TS-1283XU-RP See its full HCL → QNAP TS-133 See its full HCL → QNAP TS-1655 See its full HCL → QNAP TS-1673AU-RP See its full HCL → QNAP TS-1677XU-RP See its full HCL → QNAP TS-1683XU-RP See its full HCL → QNAP TS-216G See its full HCL → QNAP TS-233 See its full HCL → QNAP TS-2483XU-RP See its full HCL → QNAP TS-253E See its full HCL → QNAP TS-262 See its full HCL → QNAP TS-264 See its full HCL → QNAP TS-364 See its full HCL → QNAP TS-431K See its full HCL → QNAP TS-431KX See its full HCL → QNAP TS-431X3 See its full HCL → QNAP TS-431XeU See its full HCL → QNAP TS-432PXU See its full HCL → QNAP TS-432PXU-RP See its full HCL → QNAP TS-432X See its full HCL → QNAP TS-433 See its full HCL → QNAP TS-433eU See its full HCL → QNAP TS-435XeU See its full HCL → QNAP TS-451D2 See its full HCL → QNAP TS-453E See its full HCL → QNAP TS-453mini See its full HCL → QNAP TS-462 See its full HCL → QNAP TS-464 See its full HCL → QNAP TS-464U See its full HCL → QNAP TS-464U-RP See its full HCL → QNAP TS-464eU See its full HCL → QNAP TS-473A See its full HCL → QNAP TS-632X See its full HCL → QNAP TS-664 See its full HCL → QNAP TS-673A See its full HCL → QNAP TS-832PX See its full HCL → QNAP TS-855X See its full HCL → QNAP TS-855eU See its full HCL → QNAP TS-855eU-RP See its full HCL → QNAP TS-864eU See its full HCL → QNAP TS-864eU-RP See its full HCL → QNAP TS-873A See its full HCL → QNAP TS-873AU See its full HCL → QNAP TS-873AU-RP See its full HCL → QNAP TS-873AeU See its full HCL → QNAP TS-873AeU-RP See its full HCL → QNAP TS-883XU See its full HCL → QNAP TS-883XU-RP See its full HCL → QNAP TS-932PX See its full HCL → QNAP TS-983XU See its full HCL → QNAP TS-983XU-RP See its full HCL → QNAP TS-AI642 See its full HCL → QNAP TS-h1277AXU-RP See its full HCL → QNAP TS-h1277XU-RP See its full HCL → QNAP TS-h1283XU-RP See its full HCL → QNAP TS-h1677AXU-RP See its full HCL → QNAP TS-h1677XU-RP See its full HCL → QNAP TS-h1683XU-RP See its full HCL → QNAP TS-h1886XU-RP R2 See its full HCL → QNAP TS-h1887XU-RP See its full HCL → QNAP TS-h2287XU-RP See its full HCL → QNAP TS-h2477XU-RP See its full HCL → QNAP TS-h2483XU-RP See its full HCL → QNAP TS-h3087XU-RP See its full HCL → QNAP TS-h765eU See its full HCL → QNAP TS-h886 See its full HCL → QNAP TS-h973AX See its full HCL → QNAP TS-h987XU-RP See its full HCL → QNAP TVS-472XT See its full HCL → QNAP TVS-672N See its full HCL → QNAP TVS-672X See its full HCL → QNAP TVS-672XT See its full HCL → QNAP TVS-872N See its full HCL → QNAP TVS-872X See its full HCL → QNAP TVS-872XT See its full HCL → QNAP TVS-h1288X See its full HCL → QNAP TVS-h1688X See its full HCL → QNAP TVS-h474 See its full HCL → QNAP TVS-h674 See its full HCL → QNAP TVS-h674T See its full HCL → QNAP TVS-h874 See its full HCL → QNAP TVS-h874T See its full HCL → QNAP TVS-h874X See its full HCL →

Same-capacity alternatives

Other drives listed at 4 TB capacity, ranked by how many machines list them:

Toshiba MG04ACA400E 451 machines · MG04ACA**** Western Digital WD4003FFBX 390 machines · Red Pro Seagate ST4000NE0015 379 machines · Enterprise NAS HDD Toshiba MG04ACA400N 353 machines · MG04ACA**** Western Digital WD40PURZ 352 machines · Purple Seagate ST4000NM002A 346 machines · Exos 7E8 Seagate ST4000NE0025 344 machines · IronWolf Pro Western Digital HUS726T4TALA6L4 333 machines · Ultrastar 7K6

Quick answers

Is the ST4000NT001-3M2101 officially compatible with my NAS?

It appears on the official compatibility lists of 103 machines and series — 103 QNAP. Every machine page linked below shows the vendor's own list entry, refreshed daily.

Is the ST4000NT001-3M2101 CMR or SMR?

As a Seagate IronWolf Pro drive, it is rated CMR. CMR (conventional magnetic recording) is what a RAID array wants: SMR drives slow rebuilds dramatically. See the <a href="/faq/cmr-vs-smr-nas-drives/">CMR vs SMR guide</a> for the full series table.

Is the ST4000NT001-3M2101 a good NAS drive?

This is a Enterprise-class drive: rated for heavier sustained workloads than desktop drives. It is a strong pick for a NAS running 24/7, large-array rebuilds or camera workloads, and enterprise lines are also the drives most widely listed across all five vendors' HCLs. Its series rating is on file as CMR (conventional) — what RAID rebuilds and full-library copies want.

Can I use the ST4000NT001-3M2101 for a 3-2-1 cold backup copy?

Rated CMR (conventional magnetic recording) — the right recording type for a large cold copy. CMR keeps a full-library backup pass fast even at 16–24 TB, which is the whole point of the offline slot in a 3-2-1 plan: rotate two drives monthly, keep one powered off, and the backup tooling (Veeam, Duplicati, Hyper Backup, HBS 3) does the scheduling. Full rule and vendor tool table: 3-2-1 for NAS.

What are alternatives to the ST4000NT001-3M2101?

At the same capacity, the most widely listed alternatives are Toshiba MG04ACA400E (451 machines), Western Digital WD4003FFBX (390 machines), Seagate ST4000NE0015 (379 machines). The full ranked list is below.