Seagate · NAS hard drive buying guide
Seagate IronWolf 12TB · Exact identity: ST12000VN0008
12TB decimal capacity · CMR · SATA 6 Gb/s
Catalog amount: $364.99 · unverified · Price record: 2026-08-30. Tax and shipping excluded.
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IronWolf 12TB: specifications and dated store comparison →More room for a growing backup or media library when each drive slot matters.
One 12TB Seagate IronWolf ST12000VN0008 internal SATA hard drive. NAS enclosure sold separately.
This guide combines Seagate DS1904.23 with two original ST12000VN0008 experiences: a 2021 Japanese self-purchase (sinct9a) that shows outer/middle/inner slowdown, and 2019 iPentec CrystalDiskMark output on two PCs. Tom's Hardware and StorageReview 12TB IronWolf articles are older VN0007-class labs. ChooseCompute has not tested this drive. See the review evidence ↓
12TB provides 50% more nominal space than 8TB in one drive slot. It does not promise 50% faster access.[1]
A self-purchased VN0008 sample showed useful sequential speeds at several disk positions; it was one PC setup.[2]
Follow any specification for its full conditions and sources.
Living with it
A larger drive can postpone the need to consume another enclosure slot or replace a smaller disk. That is the clearest reason to consider 12TB for a growing library; its capacity alone does not establish an advantage for demanding applications.[1]
The owner’s 2021 sample reached about 248 MB/s in an outer-partition CDM test, around 200 MB/s near the middle and over 120 MB/s near the inner end. These are observations of that VN0008 unit, not guaranteed speeds for every later shipment or your NAS.[2]
The owner’s SeaTools long read took about 17.5 hours. Your diagnostic run, migration or RAID rebuild may differ, but the example makes the practical point: plan the move before you urgently need the new capacity.[2]
The owner heard a brief low-frequency startup sound, which can recur when a sleeping drive wakes. Competing fans and other HDDs limited that listening test, and the official documents use different acoustic figures. Avoid treating either as a promise of quiet operation beside your desk.[2][1][3]
iPentec published CrystalDiskMark 6.0.2 output for ST12000VN0008: about 250 MB/s sequential on an HP Z4 G4 and an HPE ML30 Gen9, using a 1024 MiB test file on empty partitions. Together with sinct9a’s outer-partition and inner-partition results, these show how test conditions and disk position affect one drive’s speed. Neither is a NAS-share test; a 1 GbE network can limit large-file transfers below these sequential results.[6][2][1]
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.
Sin〓CT9AAug 14, 2021
The owner tested a Thai-made unit dated April 24, 2021, using CDM 8.0.4 partitions at the outer, middle and inner disk regions. A long diagnostic read took about 17.5 hours. Noise impressions were made with other HDDs and two fans running, so this is not a quiet-room acoustic test.
Read the original reviewSEAGATE IronWolf 12TB ST12000VN0008
Tested: Self-purchased Thai-made unit dated 2021-04-24; initial checks on i7-3930K, benchmarks after moving to author’s secondary PC. CDM 8.0.4 at outer, middle and inner partitions. Original images identify ST12000VN0008-2PH103, SC61 and X370 SATA 6Gb/s; secondary CPU unstated. CDM 8.0.4 x64 admin, three passes, empty I5632GiB/J5444GiB/K100GiB partitions.
Applies to: This VN0008 sample only; not VN0007 or a guarantee for later dash suffixes.
| Measurement | Result | Conditions & source location |
|---|---|---|
| SeaTools long read | About 17.5 hours | One initial validation run on this sampleLong-read test paragraph |
| CDM8 I_1GiB seqQ8T1 read / write | 248.75 / 244.04 MB/s | Three passes; empty partition, X370 SATA6Gb/s. Outer I, middle J, inner K; 16MiB results cache-sensitive, not sustained media speed.Original benchmark images ST12000VN0008_015 through _019 and _017 (64GiB) |
| CDM8 I_1GiB seqQ1T1 read / write | 247.65 / 245.47 MB/s | Three passes; empty partition, X370 SATA6Gb/s. Outer I, middle J, inner K; 16MiB results cache-sensitive, not sustained media speed.Original benchmark images ST12000VN0008_015 through _019 and _017 (64GiB) |
| CDM8 I_1GiB 4kQ32T1 read / write | 2.97 / 3.11 MB/s | Three passes; empty partition, X370 SATA6Gb/s. Outer I, middle J, inner K; 16MiB results cache-sensitive, not sustained media speed.Original benchmark images ST12000VN0008_015 through _019 and _017 (64GiB) |
| CDM8 I_1GiB 4kQ1T1 read / write | 0.86 / 3.31 MB/s | Three passes; empty partition, X370 SATA6Gb/s. Outer I, middle J, inner K; 16MiB results cache-sensitive, not sustained media speed.Original benchmark images ST12000VN0008_015 through _019 and _017 (64GiB) |
| CDM8 I_16MiB seqQ8T1 read / write | 510.63 / 228.31 MB/s | Three passes; empty partition, X370 SATA6Gb/s. Outer I, middle J, inner K; 16MiB results cache-sensitive, not sustained media speed.Original benchmark images ST12000VN0008_015 through _019 and _017 (64GiB) |
| CDM8 I_16MiB seqQ1T1 read / write | 333.46 / 200.4 MB/s | Three passes; empty partition, X370 SATA6Gb/s. Outer I, middle J, inner K; 16MiB results cache-sensitive, not sustained media speed.Original benchmark images ST12000VN0008_015 through _019 and _017 (64GiB) |
| CDM8 I_16MiB 4kQ32T1 read / write | 20.91 / 16.06 MB/s | Three passes; empty partition, X370 SATA6Gb/s. Outer I, middle J, inner K; 16MiB results cache-sensitive, not sustained media speed.Original benchmark images ST12000VN0008_015 through _019 and _017 (64GiB) |
| CDM8 I_16MiB 4kQ1T1 read / write | 17.28 / 15.52 MB/s | Three passes; empty partition, X370 SATA6Gb/s. Outer I, middle J, inner K; 16MiB results cache-sensitive, not sustained media speed.Original benchmark images ST12000VN0008_015 through _019 and _017 (64GiB) |
| CDM8 I_64GiB seqQ8T1 read / write | 248.74 / 245.72 MB/s | Three passes; empty partition, X370 SATA6Gb/s. Outer I, middle J, inner K; 16MiB results cache-sensitive, not sustained media speed.Original benchmark images ST12000VN0008_015 through _019 and _017 (64GiB) |
| CDM8 I_64GiB seqQ1T1 read / write | 247.82 / 245.47 MB/s | Three passes; empty partition, X370 SATA6Gb/s. Outer I, middle J, inner K; 16MiB results cache-sensitive, not sustained media speed.Original benchmark images ST12000VN0008_015 through _019 and _017 (64GiB) |
| CDM8 I_64GiB 4kQ32T1 read / write | 2.5 / 2.52 MB/s | Three passes; empty partition, X370 SATA6Gb/s. Outer I, middle J, inner K; 16MiB results cache-sensitive, not sustained media speed.Original benchmark images ST12000VN0008_015 through _019 and _017 (64GiB) |
| CDM8 I_64GiB 4kQ1T1 read / write | 0.7 / 2.65 MB/s | Three passes; empty partition, X370 SATA6Gb/s. Outer I, middle J, inner K; 16MiB results cache-sensitive, not sustained media speed.Original benchmark images ST12000VN0008_015 through _019 and _017 (64GiB) |
| CDM8 J_1GiB seqQ8T1 read / write | 197.27 / 194.47 MB/s | Three passes; empty partition, X370 SATA6Gb/s. Outer I, middle J, inner K; 16MiB results cache-sensitive, not sustained media speed.Original benchmark images ST12000VN0008_015 through _019 and _017 (64GiB) |
| CDM8 J_1GiB seqQ1T1 read / write | 195.88 / 193.6 MB/s | Three passes; empty partition, X370 SATA6Gb/s. Outer I, middle J, inner K; 16MiB results cache-sensitive, not sustained media speed.Original benchmark images ST12000VN0008_015 through _019 and _017 (64GiB) |
| CDM8 J_1GiB 4kQ32T1 read / write | 2.93 / 3.03 MB/s | Three passes; empty partition, X370 SATA6Gb/s. Outer I, middle J, inner K; 16MiB results cache-sensitive, not sustained media speed.Original benchmark images ST12000VN0008_015 through _019 and _017 (64GiB) |
| CDM8 J_1GiB 4kQ1T1 read / write | 0.86 / 3.05 MB/s | Three passes; empty partition, X370 SATA6Gb/s. Outer I, middle J, inner K; 16MiB results cache-sensitive, not sustained media speed.Original benchmark images ST12000VN0008_015 through _019 and _017 (64GiB) |
| CDM8 K_1GiB seqQ8T1 read / write | 125.28 / 123.36 MB/s | Three passes; empty partition, X370 SATA6Gb/s. Outer I, middle J, inner K; 16MiB results cache-sensitive, not sustained media speed.Original benchmark images ST12000VN0008_015 through _019 and _017 (64GiB) |
| CDM8 K_1GiB seqQ1T1 read / write | 123.61 / 123.72 MB/s | Three passes; empty partition, X370 SATA6Gb/s. Outer I, middle J, inner K; 16MiB results cache-sensitive, not sustained media speed.Original benchmark images ST12000VN0008_015 through _019 and _017 (64GiB) |
| CDM8 K_1GiB 4kQ32T1 read / write | 2.64 / 2.79 MB/s | Three passes; empty partition, X370 SATA6Gb/s. Outer I, middle J, inner K; 16MiB results cache-sensitive, not sustained media speed.Original benchmark images ST12000VN0008_015 through _019 and _017 (64GiB) |
| CDM8 K_1GiB 4kQ1T1 read / write | 0.82 / 3.06 MB/s | Three passes; empty partition, X370 SATA6Gb/s. Outer I, middle J, inner K; 16MiB results cache-sensitive, not sustained media speed.Original benchmark images ST12000VN0008_015 through _019 and _017 (64GiB) |
Limits to keep in mind
negNov 17, 2019
Two 2019 CrystalDiskMark 6 runs on named workstation/server hosts both landed near 250/248 MB/s sequential at Q32T1 with a 1024 MiB test file on empty partitions. That is faster than the 210 MB/s datasheet OD rating and still not a NAS-share result.
Read the original reviewSeagate IronWolf ST12000VN0008 (12TB) のパフォーマンス
Tested: Self-purchased ST12000VN0008. Run 1: HP Z4 G4, Xeon W-2125, Windows 10, SATA. Run 2: HPE ML30 Gen9, Xeon E3-1240 v5, Windows Server. CrystalDiskMark 6.0.2, 1024 MiB, x5, 0% fill. Windows10 Pro build18363 on Z4 G4; second host heading says Server2019 but pasted output says Server2016 Datacenter build17763. The source OS naming conflict is unresolved; five-second test intervals.
Applies to: Exact ST12000VN0008 sequential/4K CDM on two PCs in 2019. Not a NAS Ethernet test and not VN0007.
| Measurement | Result | Conditions & source location |
|---|---|---|
| CDM6 sequential Q32T1 read / write (Z4 G4) | 250.315 / 249.392 MB/s | 1024 MiB, x5, 0.0% fill, 2019-11-17パフォーマンス測定1 output block |
| CDM6 sequential Q32T1 read / write (ML30 Gen9) | 249.545 / 247.499 MB/s | 1024 MiB, x5, 0.0% fill, 2019-11-17パフォーマンス測定2 output block |
| CDM6 4KQ8T8 read / write (Z4 G4) | 3.301 / 3.255 MB/s | 1024MiB, five passes,0%fill,5-second intervals; second host has an OS-label conflict.Original pasted measurement output block |
| CDM6 4KQ32T1 read / write (Z4 G4) | 3.318 / 3.270 MB/s | 1024MiB, five passes,0%fill,5-second intervals; second host has an OS-label conflict.Original pasted measurement output block |
| CDM6 4KQ1T1 read / write (Z4 G4) | 1.928 / 3.178 MB/s | 1024MiB, five passes,0%fill,5-second intervals; second host has an OS-label conflict.Original pasted measurement output block |
| CDM6 4KQ8T8 read / write (ML30 Gen9) | 3.281 / 3.328 MB/s | 1024MiB, five passes,0%fill,5-second intervals; second host has an OS-label conflict.Original pasted measurement output block |
| CDM6 4KQ32T1 read / write (ML30 Gen9) | 3.273 / 3.161 MB/s | 1024MiB, five passes,0%fill,5-second intervals; second host has an OS-label conflict.Original pasted measurement output block |
| CDM6 4KQ1T1 read / write (ML30 Gen9) | 1.892 / 3.226 MB/s | 1024MiB, five passes,0%fill,5-second intervals; second host has an OS-label conflict.Original pasted measurement output block |
Limits to keep in mind
Before you buy
On 2026-09-11 Newegg’s visible primary price for ST12000VN0008 was $429.99 in stock (Newegg-sold). Older B&H and Adorama rows keep their 2026-09-08 times.[7]
Extra terabytes can make sense when enclosure slots are scarce, but you still pay for the whole drive. Choose 12TB because it fits your expected library, not just because a per-terabyte calculation looks attractive.[1]
B&H’s product Q&A says this listing does not include a manufacturer box, manual or mounting screws. Allow for any hardware your installation needs.[4]
One 12TB Seagate IronWolf ST12000VN0008 internal SATA hard drive. NAS enclosure sold separately. Check the total delivered price at the store.
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The label uses decimal TB. Software using binary units reports about 10.91 TiB before other overhead, so the lower number does not by itself mean capacity is missing.[1]
Not as a direct test of VN0008. Match the complete model number; this page’s owner measurements apply to the specified VN0008 sample.[2][3]
No. That was one SeaTools long-read run. Rebuilding an array and moving files involve different work, and your system may take a different amount of time.[2]
The available material cannot answer that reliably. The listening test had other running drives and fans, and startup was audible. Compare the sound in your intended enclosure before making quietness the reason to buy.[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 · DS1904.23-2509US 12TB ST12000VN0008 column: 210 MB/s OD, 7200 rpm, 256 MB, helium, 180 TB/year, 1–8 bays, 28/30 dBA, 5.1 W idle, 7.3 W operating, 690 g typical.
Checked Sep 11, 2026 · sinct9a self-purchase VN0008; outer ~248 MB/s; middle ~200; inner >120; SeaTools long read ~17.5 h
Checked Sep 11, 2026 · 100835908 Rev F March 2021; ST12000VN0008 / ST10000VN0008 only. Acoustics in bels; not converted to datasheet dBA.
Checked Sep 8, 2026 · Product heading/MFR; Authorized Dealer; main In Stock price and quantity 1; regular new-product listing, separate used area.
Checked Sep 8, 2026 · MFR ST12000VN0008; 12TB and Single selectors at $479.99; Limited Quantity Available – Buy Now banner.
Checked Sep 11, 2026 · Two CrystalDiskMark 6.0.2 runs on ST12000VN0008, 2019-11-17
Checked Sep 11, 2026 · Newegg item 1JW-001N-00027 FinalPrice 429.99 Instock true
Checked Oct 9, 2026 · newegg-main-item; sha256:7366b35a6d9baa071800337ab4ad78280103bc6527a70d692dfef95d8fa60c0a
Checked Sep 27, 2026 · Captured observation; sha256:939f6d5237deb2d12470994ce0b1f4bb2131d4d1cb0a0cf138824343349a9254
Checked Sep 26, 2026 · Captured observation; sha256:e77d026acf5ddbe4e430f40a32c8779eea4af656f4814811bb4bfca4c007585a
Checked Sep 27, 2026 · Captured observation; sha256:11e829e2f0eade00ff8620fc903c5d5763880f6b55021315e4975f3c275c7e59
Independent review completed for the scope recorded in the audit.
Source evidence and review history (JSON)