Technical reference
Seagate IronWolf Pro ST32000NT000 32TB specifications
One 32TB ST32000NT000 · 3.5-inch SATA · CMR / HAMR
Complete specifications with requirements, upgrade limits and sources. For our buying judgment, reviews and prices, return to the buying guide.
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Search all 44 specifications, including conditions and limits.
Identity & capacity
Exact model and raw capacity
| Exact model | ST32000NT000[1] |
|---|---|
| Capacity | 32 TB[1] Decimal capacity; formatting and RAID reduce usable space. |
| Form factor | 3.5-inch[1] |
| Sector format | 512e: 512-byte logical / 4096-byte physical[2] Default sector layout. |
| Guaranteed sectors | 62,501,421,056[2] 32TB row, formatted-capacity table. |
| Recording | CMR with HAMR[2][14] Seagate’s CMR/SMR list places IronWolf Pro 28/30/32TB in Mozaic HAMR CMR: heat-assisted writing with conventional (non-SMR) tracks. DS2129.7 still prints CMR in the recording-technology row. Those are layers of the same class, not opposing specs. |
| Drive construction | Helium; 10 disks / 20 heads[2] Head and disk count from the exact-model manual. |
Interface & performance
Connection and transfer limits
| Interface | SATA 6 Gb/s[1] Negotiates 6.0 / 3.0 / 1.5 Gb/s. |
|---|---|
| Spindle speed | 7200 RPM[1] |
| Cache | 512 MB[1] |
| Maximum sustained transfer rate | 285 MB/s[1] Manufacturer outer-diameter maximum; not a full-disk or NAS-network average. |
| Average rotational latency | 4.16 ms[2] |
| Power-on / standby to ready | 30 s typical / 60 s maximum[2] Both transitions, manual table 2. |
| Command features | NCQ; SATA hot-plug support[2] Host and enclosure must also support hot-plug. |
NAS use & service
Workload, monitoring and service
| Supported drive bays | Unlimited[1] Manufacturer bay-count rating, not universal enclosure approval. |
|---|---|
| Workload rating | 550 TB/year[1] Annualized transferred-data rating; not backup capacity or a lifespan guarantee. |
| Duty rating | 8760 power-on hours/year[1] Designed for continuous operation. |
| Rotational-vibration sensors | Yes[1] |
| NAS firmware features | AgileArray; time-limited error recovery; dual-plane balancing[1] |
| Health monitoring | IronWolf Health Management[1] Availability depends on the NAS platform. |
| MTBF | 2,500,000 hours[1][2] Population reliability rating under specified conditions; not one drive’s expected life. Manual section2.9 assumes8760 power-on hours/year,10–30°C drive-reported temperature, wet-bulb ambient≤26°C and specified workload/contamination limits; maximum operating temperature is not the MTBF rating condition. |
| Nonrecoverable read error rating | 1 sector per 10^15 bits read[2] Manual notation used to avoid the datasheet’s ambiguous 10E15 typography. |
| Load/unload cycles | 600,000[2] |
| Limited warranty | 5 years[1] Confirm the purchased serial number and region. |
| Rescue recovery service | 3 years[1] Not available in every country; recovery is not guaranteed and does not replace backup. |
Power & acoustics
Running costs and sound ratings
| Average idle power | 6.8 W[1] Manufacturer rating. |
|---|---|
| Average operating power | 8.3 W[1] Manufacturer rating; workload and enclosure affect consumption. |
| Standby / sleep power | 1.2 W / 1.2 W[1] Typical. |
| Startup current | 2.0 A on 12 V[1] Typical; include simultaneous disk spin-up in the enclosure power budget. |
| Power supply | +12 V and +5 V[2] Manual voltage tolerance: 12 V ±10%, 5 V ±5%. |
| Idle / seek acoustics | 28 dBA / 32 dBA[1][2] Datasheet typical values; idle measured in Idle 1 state. The manual identifies A-weighted sound power, not sound pressure at a specified listening distance. These are not an enclosure sound-level test. |
Environment & handling
Temperature, shock and vibration limits
| Operating temperature | 10°C minimum ambient; 60°C maximum drive-reported[1] Maintain airflow and monitor the installed drive. |
|---|---|
| Nonoperating temperature | −40°C to 70°C[1] Ambient. |
| Relative humidity | 5–95%, noncondensing[2] Operating and nonoperating; maximum change 20% per hour. |
| Temperature gradient | 20°C/hour maximum[2] Operating and nonoperating. |
| Operating / nonoperating altitude | −304.8 to 3048 m / −304.8 to 12,192 m[2] |
| Operating shock | 30 G read / 30 G write[1] 2 ms. |
| Nonoperating shock | 200 G[1] 1 ms and 2 ms. |
| Operating linear vibration | 0.70 Grms, 5–500 Hz[2] |
| Operating rotational vibration | 12.5 rad/s², 20–1500 Hz[2] Manual limit; datasheet labels its corresponding row differently. |
| Nonoperating vibration | 2.27 Grms, 10–500 Hz[1] Datasheet conditions; manual summary specifies 2–500 Hz. |
Dimensions & installation
Space and enclosure requirements
| Dimensions | 26.11 × 101.85 × 146.99 mm[1] Height × width × depth; maximum width/depth. |
|---|---|
| Weight | 695 g[1] Datasheet typical; manual lists 695 g maximum. |
| Installation | 3.5-inch SATA drive bay with adequate cooling[2] Check exact NAS compatibility, capacity support and firmware before purchase. |
Exact product identity & open questions
- Exact product
- Seagate IronWolf Pro ST32000NT000, 32TB[1]
- Purchase configuration
- One new 3.5-inch SATA HDD; no NAS enclosure included[5]
- Noise in a real NAS: No controlled exact-model enclosure-noise test was adopted. Do not infer a quiet multi-drive NAS from the manufacturer’s drive rating.
- Long-term reliability: The selected tests are not a multi-year failure study. MTBF and warranty do not establish the lifetime of an individual drive.
- Manufacturer table differences: Manual summary and detailed recording-density tables disagree; density figures are omitted. Vibration frequency ranges and weight qualifiers are retained with their source conditions.
- Current US offer coverage: On 2026-09-11 DiscTech listed ST32000NT000 new at $1,379 in stock. The same day’s Newegg pane showed TechnoDealsUSA at $1,699 in stock as the visible primary, and a separate Newegg-sold alternative at $1,159.99 out of stock. Older Amazon/B&H/Adorama rows keep their 2026-09-08 times. Confirm seller, new condition and shipping at purchase.
Sources
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.
- [1] Seagate IronWolf Pro 32TB data sheet, DS2129.7-2510US ↗
Checked Sep 11, 2026 · DS2129.7-2510US ST32000NT000 column: 512 MB, 285 MB/s, 550 TB/year, 6.8/8.3 W, 28/32 dBA, 10 °C min, 60 °C drive-reported max. Datasheet lists CMR; independent tests describe HAMR.
- [2] Seagate IronWolf Pro SATA Product Manual, 207967700 Rev B ↗
Checked Sep 11, 2026 · 207967700B ST32000NT000 column in shared 32/30/28/24TB-NT031 tables; 30/60 s ready.
- [3] Seagate IronWolf Pro 32 TB im Test: Die derzeit größte HDD für NAS-Systeme ↗
Checked Sep 11, 2026 · HAMR/Mozaic 10×3.2 TB; write collapse after ~22 TB; fan retest; CDM 294/287 MB/s; average write 201.1 vs 218.5 MB/s
- [4] Seagate IronWolf Pro 32TB Review: Top-of-Stack Capacity for Multi-Bay NAS ↗
Checked Sep 11, 2026 · FIO 284/283 MB/s 128K; BlackMagic 253.4/228.3 MB/s; PCMark 10 Data Drive 609; 3DMark Storage 175
- [5] DiscTech — ST32000NT000 32TB product listing ↗
Checked Sep 8, 2026 · Main product identity and selected offer; see listing conditions
- [6] Newegg — ST32000NT000 32TB product listing ↗
Checked Sep 8, 2026 · Main product identity and selected offer; see listing conditions
- [7] Amazon — ST32000NT000 32TB product listing ↗
Checked Sep 8, 2026 · Main product identity and selected offer; see listing conditions
- [8] B&H Photo Video — ST32000NT000 32TB product listing ↗
Checked Sep 8, 2026 · Main product identity and selected offer; see listing conditions
- [9] Adorama — ST32000NT000 32TB product listing ↗
Checked Sep 8, 2026 · Selected 32TB / Single, MFR ST32000NT000; limited-quantity purchase banner and selected price
- [10] DiscTech: ST32000NT000 current US new listing ↗
Checked Sep 10, 2026 · Exact MPN in H1; main offer shows $1379.00, In Stock: 100 Need more? Stock Levels This stock level is real time and accurate. This quantity is available for same-day shipment. Larger quantities can take up to a week to ship. Call us for larger quantities that you need urgently., and New condition in structured offer data.
- [11] Newegg: ST32000NT000 current US new listing ↗
Checked Sep 10, 2026 · Exact MPN in H1; selected main offer shows Auto Notify, seller Newegg, and a visible price of $1159.99.
- [12] DiscTech ST32000NT000 ↗
Checked Sep 11, 2026 · Brand new; $1,379.00; schema.org InStock; stock-quantity 100
- [13] Newegg ST32000NT000 product page ↗
Checked Sep 11, 2026 · Newegg item 22-185-118 FinalPrice 1159.99 Instock false; marketplace 1699 Instock true
- [14] Seagate CMR and SMR Hard Drives — IronWolf Pro classification ↗
Checked Sep 11, 2026 · 3.5-inch IronWolf Pro table: CMR 2–24TB; Mozaic HAMR CMR 28/30/32TB; SMR N/A
- [15] Newegg ST32000NT000 — TechnoDealsUSA primary pane ↗
Checked Sep 11, 2026 · price-current_2026 $1,699.00; SellerName TechnoDealsUSA; item 9SIAG98M686106 Instock true
Research and review record
- Research: Grok 4.6 · Source research and data update
- Self-check: Grok 4.6 · Researcher self-check
- Independent review: GPT-6 (Codex) · Exact-model official table/manual discrepancies; original review or owner-source applicability; preserved material provenance and primary offers.
- Editorial integration: GPT-6 (Codex) · Editorial integration and validation
Independent review completed for the scope recorded in the audit.
Source evidence and review history (JSON)