Seagate · NAS hard drive buying guide
Seagate IronWolf Pro 24TB · Exact identity: ST24000NT002
24TB decimal capacity · CMR · SATA 6 Gb/s
Catalog amount: $859.99 · historical · Price record: 2026-09-26T07:27:09.798520+00:00. Tax and shipping excluded.
Historical price observation. Recheck the price and availability before buying; this is not a current offer.
IronWolf Pro 24TB: specifications and dated store comparison →24 TB per bay for a growing shared-storage array
One 24 TB ST24000NT002 drive · 3.5-inch SATA · CMR · 7200 RPM
This guide combines Seagate DS2129.4 and Seagate’s CMR/SMR list with two original ST24000NT002 tests: NASCompares (USB-dock mixed copy) and Fireblsblog (desktop lab power, sequential charts and a metered sound level). 24TB IronWolf Pro is in the conventional CMR class, not Mozaic HAMR CMR. ComputerBase later used a 24TB Pro as a non-HAMR comparison point in its 32TB article. ChooseCompute has not tested this drive. See the review evidence ↓
CMR recording and the annual workload class suit always-on NAS storage.[1]
24 TB per bay provides substantial raw capacity; usable space depends on redundancy.[1]
Enclosure vibration and seek noise need separate consideration; no room-noise guarantee follows from the specification.[1][2]
A 7200 RPM mechanical drive has rotational delay; capacity-focused NAS storage is its main role.[2]
Follow any specification for its full conditions and sources.
Living with it
A pair of 24 TB drives in a simple mirror provides roughly 24 TB before formatting and filesystem overhead. Four equal drives with one drive of parity provide roughly 72 TB before overhead. These are capacity calculations, not measurements; snapshots and reserved space reduce what remains.[1]
The 550 TB/year workload class, RV sensors and RAID-oriented error recovery suit frequent shared storage use. They do not make a single drive redundant or make an unsupported NAS configuration approved.[1]
The 285 MB/s outer-track rating describes the drive under manufacturer conditions. Network speed, parity, small files and the NAS processor can all limit transfers. Buy the capacity and workload class you need; do not equate SATA link speed with file-copy speed.[1]
Fireblsblog’s original24TB screenshots show287.45/275.90MB/s sequential read/write in a1GiB CrystalDiskMark test. A full-span HD Tune pass averaged226.5/211.5MB/s. The difference matters when filling or reading most of the disk: a short outer-zone result is not a whole-drive transfer promise.[9]
Fireblsblog reported a24.7dBA average over a selected operating interval, but the article does not state microphone distance or background level. NASCompares reused a20TB recording. These sources cannot guarantee the noise of a24TB drive in your enclosure; placement and vibration still matter.[9][3][1]
In the IronWolf Pro 32TB test, ComputerBase's comparison set includes IronWolf Pro 24TB traces (average write 221.4 MB/s in that suite, ahead of the uncooled 32TB). Charts label the capacity and year, not always ST24000NT002. Treat that as same-family ComputerBase methodology, not a second NASCompares-style USB-dock test.[10]
Our buying advice combines official specifications with the original reviews below. We have not tested this product ourselves. Expand a review for its setup, measurements and limitations.
Rob AndrewsApr 17, 2024
NASCompares reported 205 MB/s average and 260 MB/s peak for a 20GB mixed-file copy using a Windows 10 Pro i5-11400 PC and Sabrent USB 3.2 Gen 2 dock. This single-drive result does not establish RAID speed. The reused 20TB noise recording supplies no 24TB acoustic evidence.
Read the original reviewSeagate 24TB Ironwolf Pro NAS Hard Drive Review
Updated Jul 15, 2025
Tested: Single ST24000NT002-3N1101, EN01 firmware; Windows10 Pro i5-11400/B560M/16GBDDR4-2666, SabrentUSB3.2Gen2 dock. Separate Synology GIF shows DS923+ named host with87.3TB RAID0 volume and AJA testing; it is not the same single-drive test.
Applies to: 24 TB NT002 test; article contains model-number typos and unrelated reused assets.
| Measurement | Result | Conditions & source location |
|---|---|---|
| 20 GB mixed-file copy | 205 MB/s average; 260 MB/s peak | Author-reported mixed-file copy onto the24TB drive through the USB dock. GIF only covers34–40% completion; shown speeds254–260MB/s cannot independently verify the reported205MB/s whole-copy average.Testing: paragraph before 20 GB Windows Transfer |
| CDM8.0.4 sequential Q8T1 read/write | 278.20/273.09 MB/s at1GiB;271.62/270.59 MB/s at16GiB | One pass each, empty22352GiB USB-connected volume.4GiB272.40/272.73MB/s;16GiB4KQ32T16 read/write2.69/3.42MB/s.OriginalPerformance2/3/4 screenshots |
Limits to keep in mind
Firebls
The original24TB charts show287.45/275.90MB/s sequential in a1GiB CDM test and226.5/211.5MB/s full-span HD Tune averages. Reported idle/copy powers are3.14/7.07W, with inconsistencies in the article’s voltage/current table. The24.7dBA selected operating interval lacks a stated distance or background level.
Read the original reviewSeagate IronWolf Pro, 24 TB, ST24000NT002 im Test
Tested: Exact ST24000NT002, HD Tune label suffix3N1. Benchmark subsection explicitly uses the older Hardwareluxx test PC via linked method; the separate main platform list is i9-12900KS/MSIZ690/32GBDDR5-5200/Windows11 withfourQ5SSDs and Adaptec controller and should not automatically be applied to those benchmarks. Power uses separate5V/12V oscilloscope rails. Acoustic microphone distance/background not stated.
Applies to: Exact24TB sample; original CDM, ATTO, HD Tune, scope and sound screenshots independently inspected. No array reliability claim.
| Measurement | Result | Conditions & source location |
|---|---|---|
| Author-stated sequential range | 270–290 MB/s peak | Author overall characterization; original CDM8.0.4 and full-surface HD Tune readings listed separately.Bewertung |
| Idle power (both rails, scope) | About 3.14 W | Sum of author-tabulated rail powers1.98+1.16W; voltage/current columns do not reproduce all listed powers, and waveform screenshots omit numeric statistics. Retained as author-reported, not independently recomputed; not datasheet idle definition.Messung 2 Idle |
| Copy-test power | 7.07 W average | Sum of author-tabulated3.64+3.43W; same internal voltage/current/power inconsistency. Not independently recalculated from raw samples.Messung 3 |
| Average operating sound level | 24.7 dB(A) | Selected A–B interval average24.7dBA in Dec9,2024 screenshot; whole displayed dataset average24.4, peak28.0,min20.0. Distance/background unspecified and plotted graph blank below30dB. Not calibrated evidence of a universally quiet NAS.Schallpegelmessung |
| CDM8.0.4 sequential Q8T1 read/write | 287.45 / 275.90 MB/s | Five1GiB passes on near-empty22352GiB volume; Q1T1283.63/275.52MB/s,4KQ1T11.07/3.08MB/s. TwoGiB Q8T1282.78/273.55MB/s.OriginalCDM8-1/2 screenshots |
| HD Tune Pro5.70 full-surface read/write averages | 226.5 / 211.5 MB/s | Single24TB pass; read min/max125.9/286.4MB/s, write78.2/277.9MB/s. Read access12.0ms, write4.10ms; lower average than outer-zone peak.OriginalHDTune_R/W |
| HD Tune random4K read | 85 IOPS;11.670ms average access | 4KB aligned full-span random-read test;33.343ms maximum,0.335MB/s.OriginalHDTune_RAR |
Limits to keep in mind
Before you buy
On 2026-09-11 Newegg’s visible primary price for ST24000NT002 was $859.99 in stock (Newegg-sold). Older marketplace and store rows keep their original dates.[11]
Multiply the dated per-drive price by the number of drives you need, then allow for backup storage, a replacement plan and any network upgrade. Compare usable capacity after redundancy rather than adding raw TB alone.[1]
The datasheet lists 6.3 W average idle and 7.8 W average operating power per drive. Actual energy depends on workload, sleep settings and background tasks; include the NAS enclosure itself separately.[1][2]
Check ST24000NT002, 24 TB, one-drive quantity, new condition and the actual seller before paying. A standard retail listing can also display separate used offers or a different default marketplace seller.[1]
One 24 TB ST24000NT002 drive · 3.5-inch SATA · CMR · 7200 RPM Check the total delivered price at the store.
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5 stores · 0 recent price observations
Sold by MegaRetailStore
$859.99
Historical price
Currency not confirmed
Stock not confirmed · Condition not recorded
Observed Sep 26, 2026, 7:27:09 AM UTC[13]
View exact product at AmazonSold by B&H Photo Video
$999
Historical price
Stock not confirmed · New
One 24 TB ST24000NT002 3.5-inch SATA internal NAS HDD
Free Expedited Shipping shown. Price and stock are observations, not guarantees. Confirm exact MPN, new condition, seller and warranty before ordering. MFR ST24000NT002; 24 TB; quantity 1; Temporarily Out of Stock.$999 primary new listing; used offer excluded.
Observed Sep 8, 2026, 3:45:27 PM UTC[4]
View exact product at B&HSold by Lucky Store 4 You
$1,027.99
Historical price
Stock not confirmed · New
Observed shipping: $0.00
Observed Oct 9, 2026, 1:16:27 AM UTC[12]
View exact product at NeweggSeller not recorded
$1,313.89
Historical price
Currency not confirmed
Stock not confirmed · Condition not recorded
Observed Sep 27, 2026, 8:40:54 AM UTC[14]
View exact product at MemoryCSold by Adorama
Check price
Stock not confirmed · New
One 24 TB ST24000NT002 3.5-inch SATA internal NAS HDD
Check delivery availability and final shipping cost for your address. Price and stock are observations, not guarantees. Confirm exact MPN, new condition, seller and warranty before ordering. Exact model page; active offer availability not established. Selector pricing is not a verified primary offer.
Observed Sep 8, 2026, 3:45:27 PM UTC[6]
View exact product at AdoramaPrices are dated observations. Confirm the model, seller, condition, stock and delivered total at the store. Older prices remain visible as history. Links may earn a commission.
Yes. Seagate lists ST24000NT002 as CMR in its model-specific datasheet column.[1]
No. The drive is designed for NAS use, but controller support, maximum capacity and vendor firmware qualification still matter. Check the exact enclosure and drive model together.[1][2]
Research updated Sep 11, 2026. Individual source check dates are listed below. Measurements belong to the named reviewers; tested configurations and software versions may differ from the product you buy.
Checked Sep 11, 2026 · DS2129.4-2311US p.2 ST24000NT002 column: 512 MB cache, 285 MB/s OD, 550 TB/year, 6.3 W idle, 7.8 W operating, 20/26 dBA, 5 °C min ambient.
Checked Sep 11, 2026 · Cover models ST24000NT002 / ST20000NT001 / ST16000NT001 / ST12000NT001; specification summary tables pp. 7–12 and acoustics/power notes. Shared rows are not per-column.
Checked Sep 11, 2026 · Live URL HTTP 403; reread via Wayback; mixed-file 205/260 MB/s retained
Checked Sep 8, 2026 · Product heading / MFR, selected capacity and quantity; primary purchase area and seller disclosure. MFR ST24000NT002; 24 TB; quantity 1; Temporarily Out of Stock.$999 primary new listing; used offer excluded.
Checked Sep 8, 2026 · Product heading / MFR, selected capacity and quantity; primary purchase area and seller disclosure. Exact 24 TB model; selected PC Parts Hub offer with Add to cart.
Checked Sep 8, 2026 · Product heading / MFR, selected capacity and quantity; primary purchase area and seller disclosure. Exact model page; active offer availability not established. Selector pricing is not a verified primary offer.
Checked Sep 10, 2026 · Exact MPN in title; selected new main buy box provides Add to cart and shows seller QuickDealStore; ships from Amazon; numeric price is hidden behind cart.
Checked Sep 10, 2026 · Exact MPN in H1; selected main offer shows Add to cart, seller Adorama, and a visible price of $951.23.
Checked Sep 11, 2026 · Exact ST24000NT002; power rails, CDM/ATTO/HD Tune, Schallpegelmessung 24.7 dB(A)
Checked Sep 11, 2026 · Newegg item 22-185-104 FinalPrice 859.99 Instock true
Checked Oct 9, 2026 · newegg-main-item; sha256:d8cd916dfed5aa25fdc62940c239df35c7f74f1de96235207a24272ebc33b7ca
Checked Sep 26, 2026 · Captured observation; sha256:5e8ed7502f0151c16b496aa60f984c8dcb5a0918af58daa8e271601967438510
Checked Sep 27, 2026 · Captured observation; sha256:a261d635644f26b36cc10c03bb34b9425481740f3bf5cd4bb2a28cba43754c80
Independent review completed for the scope recorded in the audit.
Source evidence and review history (JSON)