Technical reference
Synology Plus Series HAT3310-12T 12TB specifications
One 12TB HAT3310-12T · 3.5-inch SATA · CMR
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 34 specifications, including conditions and limits.
Identity & capacity
Exact drive and storage layout
| Exact model | HAT3310-12T[1] |
|---|---|
| Capacity | 12 TB[1] Decimal raw capacity; formatting and redundancy reduce usable space. |
| Form factor | 3.5-inch[1] |
| Sector format | 512e[1] |
| Recording technology | CMR[1] Conventional magnetic recording; not SMR. |
| Drive design | Helium-sealed[1] |
Interface & performance
NAS use & service
Workload, compatibility and warranty
| Workload rating | 180 TB/year[1] Data read, written or verified by host commands; not a capacity or lifetime guarantee. |
|---|---|
| MTBF | 1,200,000 hours[1] A population statistical rating, not the expected life of an individual drive. |
| Limited warranty | 3 years[1] Starts on the purchase date on the receipt; confirm region and serial eligibility. |
| Duty design | 24/7 NAS operation[1] |
| Firmware updates | Through Synology DSM[1] On a supported Synology system when an update is available. |
| NAS compatibility | Check the exact NAS and drive pairing[2] The Synology brand alone does not establish compatibility with every enclosure. |
Power & acoustics
Power conditions and sound ratings
| Supply voltage | 12 V ±10%; 5 V +10% / −7%[1] |
|---|---|
| Active idle power | 3.30 W[2] Manufacturer typical; platform and configuration affect consumption. |
| Random read / write power | 6.85 W[2] Manufacturer typical, 4KB Q1. Not startup power or a whole-NAS measurement. |
| Idle / seek acoustics | 20 / 32 dB[1] Manufacturer typical values; the datasheet does not specify distance or weighting. Do not treat these as measured room noise. |
Environment & handling
Operating limits
| Operating temperature | 5°C to 60°C[1] |
|---|---|
| Nonoperating temperature | −40°C to 70°C[1] |
| Operating shock | 686 m/s²[1] 2 ms duration. |
| Nonoperating shock | 2450 m/s²[1] 2 ms duration. |
| Operating vibration | 5–300 Hz: 7.35 m/s²; 300–500 Hz: 2.45 m/s²[1] |
| Nonoperating vibration | 5–500 Hz: 29.4 m/s²[1] |
| Operating altitude | −304.8 to 3048 m[1] |
| Nonoperating altitude | −304.8 to 12,192 m[1] |
| Operating relative humidity | 5–90%, noncondensing[1] |
| Nonoperating relative humidity | 5–95%, noncondensing[1] |
Dimensions & installation
Fit and handling
| Dimensions | 26.1 × 101.85 × 147 mm[1] Height × width × depth. |
|---|---|
| Weight | 720 g[1] |
| Certifications | CE, RCM, BSMI, KC, UKCA, UL, TUV, ICES, RoHS[1] |
| Handling | Protect against electrostatic discharge[1] Ground yourself and avoid touching the connectors or circuit board. |
Exact product identity & open questions
- Exact drive
- HAT3310-12T, 12TB, 3.5-inch SATA[1]
- Purchase configuration
- One new internal HDD; no NAS enclosure included[5]
- Long-term reliability: No exact-model population failure study is adopted. MTBF is not an individual lifespan prediction.
- Acoustic comfort: No calibrated exact-model enclosure-noise result is adopted; manufacturer ratings do not describe the completed NAS.
- Current US offer coverage: 1 exact-MPN new main offer(s) returned usable pages on 2026-09-10; seller, availability and only prices visible without a cart action were recorded. Other attempts were blocked, mismatched or lacked a qualifying main offer. All current facts are point-in-time observations. 4 older listing(s) remain separate.
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] Synology Plus Series SATA HDD datasheet, PLUSHDD3320-2026-ENU-REV000 ↗
Checked Sep 11, 2026 · Pages 1–4 and safety page; exact HAT3310-12T column
- [2] Synology Plus Series — hardware specifications and compatibility ↗
Checked Sep 11, 2026 · HAT3310-12T column; 4KB Q1 power conditions and compatibility link
- [3] Synology HAT3310-12T NAS paredzētā HDD apskats ↗
Checked Sep 11, 2026 · Four-drive DS923+ test, before desktop tests
- [4] Synology HAT3310-12T Plus Review ↗
Checked Sep 11, 2026 · Migration paragraph following JBOD setup
- [5] B&H — HAT3310-12T listing ↗
Checked Sep 8, 2026 · Selected capacity / exact MPN and main new-product offer
- [6] Adorama — HAT3310-12T listing ↗
Checked Sep 8, 2026 · Selected capacity / exact MPN and main new-product offer
- [7] Amazon — HAT3310-12T listing ↗
Checked Sep 8, 2026 · Selected capacity / exact MPN and main new-product offer
- [8] Newegg — HAT3310-12T listing ↗
Checked Sep 8, 2026 · Selected capacity / exact MPN and main new-product offer
- [9] Best Buy — HAT3310-12T listing ↗
Checked Sep 8, 2026 · Selected capacity / exact MPN and main new-product offer
- [10] Newegg: HAT3310-12T current US new listing ↗
Checked Sep 10, 2026 · Exact MPN in H1; selected main offer shows Add to cart, seller Newegg, and a visible price of $519.99.
- [11] Synology drive compatibility policies FAQ ↗
Checked Sep 11, 2026 · FAQ on 2025-and-later storage compatibility; host-specific list still required
- [12] Synology Plus Series 3.5-inch SATA HDD ↗
Checked Sep 11, 2026 · Series marketing, CMR/firmware claims, applied-model names in HTML
- [13] Synology Product Spec — HAT3310-12T ↗
Checked Sep 11, 2026 · Last updated Apr 23, 2026; 281 MB/s; idle 3.30 W
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 official12TB identity/specifications, original Kursors/CGMagazine methods and adopted charts, conditioned reader summaries and unchanged dated merchant observations; no new indexing decision.
- 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)