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Seagate 4TB IronWolf NAS SATA Hard Drive 6Gb/s 256MB Cache 3.5-Inch Internal Hard Drive for NAS Servers, Personal Cloud Storage (ST4000VN008), Silver
Seagate

Seagate 4TB IronWolf NAS SATA Hard Drive 6Gb/s 256MB Cache 3.5-Inch Internal Hard Drive

Bottom line: The Seagate 4TB IronWolf NAS SATA Hard Drive 6Gb/s 256MB Cache 3.5-Inch ($279.99 on Amazon as of 2026-10-07): Rated for multi-user NAS arrays up to 8 bays, not just single-drive desktop use; main trade-off: listing contradicts itself on cache: 256MB in the title vs 64MB in the specs.

$279.99

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Buy on Amazon — $279.99 Compare to similar nas & home servers

By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014. For NAS and home-server hardware, synthesises manufacturer specs and independent reviews rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

*Price sourced from Amazon.com. Last updated 2026-10-07. Price and availability subject to change.

Pros & Cons

Pros

  • ✓ Rated for multi-user NAS arrays up to 8 bays, not just single-drive desktop use
  • ✓ Sustained transfer speeds up to 180MB/s over the SATA 6Gb/s interface
  • ✓ 1M-hour MTBF rating plus a three-year limited warranty for 24/7 operation
  • ✓ IronWolf Health Management surfaces drive health inside the NAS dashboard
  • ✓ Low-vibration, low-noise design for drives stacked in a shared enclosure

Cons

  • ✗ Listing contradicts itself on cache: 256MB in the title vs 64MB in the specs
  • ✗ Recording technology (CMR or SMR) is never stated in the listing
  • ✗ Rated only to 8-bay enclosures, so larger arrays need a different drive
  • ✗ Three-year warranty is short for a drive expected to spin around the clock

Manufacturer description

The Seagate IronWolf 4TB (ST4000VN008) is a 3.5-inch SATA 6Gb/s hard drive built for always-on NAS enclosures rather than desktop duty. Seagate rates it for multi-user arrays of up to eight bays, with sustained speeds of up to 180MB/s and a 1M-hour MTBF rating for the round-the-clock workload a personal cloud or small-team file server generates. The drive is engineered to run quiet and hold up under the rotational vibration of a stacked chassis, so you avoid the lags and dropouts consumer desktop drives hit once you populate bays three and up. IronWolf Health Management is integrated…

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SpecPicks Verdict

SpecPicks scored Seagate 4TB IronWolf NAS SATA Hard Drive 6Gb/s 256MB Cache 3.5-Inch… using a rating × review-volume × price-fit model applied to published specs and reviews across the nas & home servers category. Seagate's nas & home servers lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for nas & home servers of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Frequently Asked Questions

Does the ST4000VN008 have 64MB or 256MB of cache?

The listing conflicts with itself: the title says 256MB while the feature specs say cache of up to 64MB. If cache size matters to your build, confirm it with Seagate or the seller before ordering.

How many drive bays does the 4TB IronWolf support?

Seagate rates IronWolf for multi-user NAS environments of up to 8 bays. The listing makes no claim for enclosures larger than that, so bigger arrays should use a drive rated for them.

How fast is this drive?

Seagate lists sustained speeds of up to 180MB/s across a SATA 6Gb/s connection, which is aimed at file-sharing performance across several users rather than single-user burst speed.

Can I use it in a regular desktop PC instead of a NAS?

It is a standard 3.5-inch SATA drive, so it will connect and work. You just will not use what you are paying for: the vibration tolerance, IronWolf Health Management, and 1M-hour MTBF rating are aimed at always-on multi-bay duty.

What warranty comes with the Seagate IronWolf 4TB?

A three-year limited warranty protection plan is included per the listing. Check the product listing for current terms and regional coverage before you buy.

Key Features

  • Ironwolf internal Hard drives are the ideal solution for up to 8-Bay, multi-user NAS environments craving powerhouse performance
  • Store more and work faster with a nas-optimized hard drive providing 4Tb and Cache of up to 64MB
  • Purpose built for NAS enclosures, IronWolf delivers less wear and tear, little to no noise/vibration, no lags or down time, increased file-sharing performance, and much more
  • Easily monitor the health of drives using the integrated IronWolf health management system and enjoy long-term reliability with 1M hours MTBF
  • Three-year limited warranty protection plan included
  • system ram type: ddr4_sdram

Full Specifications

BrandSeagate
ColorSilver
Model NameST4000VN008
Read Speed750 Megabytes Per Second
Form Factor3.5-inch
Media Speed180 megabytes_per_second
Model NumberST4000VN008
CompatibilityPC
Built-In MediaIronWolf™ 4TB SATA
Item Type NameSeagate 4TB IronWolf NAS SATA 6Gb/s NCQ 64MB Cache 3.5-Inch Internal Hard Drive (ST4000VN008)
Hard-Drive Size4 TB
Mfr Part NumberST4000VN008
Number of Items1
Special FeaturePortable
system ram typeddr4_sdram
Item Part NumberST4000VN008, ST4000VN008-20PK
Vibration/RumbleYes
Hardware PlatformPC
Installation TypeInternal Hard Drive
Compatible DevicesServer
Full listing titleSeagate 4TB IronWolf NAS SATA Hard Drive 6Gb/s 256MB Cache 3.5-Inch Internal Hard Drive for NAS Servers, Personal Cloud Storage (ST4000VN008), Silver

Ready to buy?

Seagate 4TB IronWolf NAS SATA Hard Drive 6Gb/s 256MB Cache 3.5-Inch Internal Hard Drive for NAS Servers, Personal Cloud Storage (ST4000VN008), Silver is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Buy on Amazon — $279.99

*Price sourced from Amazon.com. Last updated 2026-10-07. Price and availability subject to change.

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Seagate 4TB IronWolf NAS SATA Hard Drive 6Gb/s 256MB Cache 3.5-Inch Internal Hard Drive for NAS Servers, Personal Cloud Storage (ST4000VN008), Silver
$279.99
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