Computers

Thermaltake Toughpower GT 850W ATX 3.1 Gold Modular Power Supply

3.8 10 reviews 2 min read

Thermaltake Toughpower GT 850W ATX 3.1 Gold Modular Power Supply

Product description

The Toughpower GT series is engineered to satisfy contemporary desktop power needs, adhering to Intel ATX 3.1 standards and offering native PCIe Gen 5.1 12+4 pin connectivity for demanding graphics cards. It comes in 750W and 850W variants; this entry is the 850W model and includes the modular cable set of low-profile flat black cables to improve internal airflow and cleanup cable runs.

Performance highlights include 80 PLUS Gold efficiency (up to ~90% efficiency), a high-amperage single +12V rail for steady GPU and CPU delivery, and Smart Zero Fan technology that keeps the 120mm (12cm) hydraulic-bearing fan stopped or at minimal speed under light loads to reduce audible noise. The package supports modern power requirements with a native PCI-E 12+4PIN (rated for 450W to a single connector) plus four PCI-E 6+2PIN connectors for additional devices.

Physical and electrical specifications are retained for system planning: P/N PS-TPT-0850FNFAGU-3; Max Output Capacity 850W; Color: Black; Dimensions: 150mm (W) x 86mm (H) x 140mm (D). Input: 100-240V~, 50Hz-60Hz, Input Current 10A max. Active PFC is implemented; Power Good signal 100–250 msec; Hold-up time 17 msec at 80% load. Operating range: 0°C to +40°C at 5%–85% humidity. Storage: -40°C to +70°C, 5%–95% humidity. Cooling is handled by a 120mm hydraulic bearing fan; efficiency meets 80 PLUS Gold at 115Vac input. MTBF listed as 100. Safety and regulatory approvals include CE / UKCA / ICES / TUV / LVD / RCM / CB / FCC / cTUVus / BSMI / CCC / BIS / S‑MARK. Protection mechanisms: OVP, UVP, OCP, OPP, OTP, SCP.

Connector and accessory details: PCI-E 6+2PIN x4, PCI-E 12+4PIN x1 (450W), fully modular cable set (flat low-profile black cables), and the unit ships with mounting screws and cable bags. A 5-year manufacturer warranty supports the product.

Pros

  • Native PCIe 12+4 connector for modern GPUs
  • 80 PLUS Gold efficiency and single +12V rail
  • Fully modular flat black cables for tidy builds

Cons

  • Some users report early failures
  • Occasional units exhibit audible fan issues
  • Single 12+4 connector limits multiple high-power GPUs

VerdictThe Toughpower GT 850W is designed for modern GPU-heavy systems: ATX 3.1 compliant, native PCIe 12+4 (450W) connector, and 80 PLUS Gold efficiency. It delivers quiet operation via Smart Zero Fan and a 120mm hydraulic-bearing fan while its fully modular flat cables simplify routing. While most users report solid performance and low noise, a minority report early failures or fan-related issues — con

Reviews

  1. José Daniel 5/5

    Solid value choice

    Does the job well for a budget-conscious build. Reliable and straightforward.

  2. adan 5/5

    Quiet and future-ready

    Excellent unit for my 12700K + RTX 3060 build. I barely hear it and the modern connectors are a nice touch. Comes with all the cables needed.

  3. J. Jones 4/5

    Good after RMA

    My first unit had coil whine and crashes. RMA'd it and the replacement (higher watt) was sent free and runs quiet. Comes with many modular cables.

  4. Ura_chan 5/5

    Llegó en perfecto estado

    La fuente llegó intacta, solo la caja un poco golpeada por el transporte. Aún no la pruebo, actualizaré cuando la instale. Viene con lo que se ve en las fotos.

  5. Aaron Fricke 5/5

    All the connectors I needed

    Upgrading my Nvidia card required a PSU with the 12-pin hookup and enough wattage. I've used this brand before and it matched my needs. Important note: always use the cables supplied with the new PSU, since cable pinouts can differ.

  6. Julian 1/5

    Died suddenly after weeks

    Worked for about three weeks then the system shut off with no warning. Swapped in my old PSU and everything booted fine. Possibly an isolated failure, but I wouldn't risk it.

  7. Adrian Tovar 5/5

    Muy buena para mi equipo

    Sobra potencia para mi Ultra 7 con RTX 5070 y refrigeración líquida. Rinde sin problemas.

  8. Declan 1/5

    Very loud and unstable fan

    It took months to realize the PSU fan was the culprit. It ramps up randomly while idle and is very noisy. Not acceptable for a quiet build.

  9. MIISSAEELL VEZ QUE 5/5

    Excelente y silenciosa

    La recomiendo 100%. Tuve una de 500W de la misma marca por más de 4 años y sigue funcionando; esta es muy silenciosa.

  10. Jesse 2/5

    Missing mains lead

    PSU itself is fairly quiet, but my unit arrived without the AC power cord.

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