Everything for Back to School — and then someShop now

Skip to contentGo to Product Search
Main Content

Thermaltake - Toughpower SFX 850W 80Plus Platinum ATX 3.1 Standard Power Supply - Black

Model: PS-STP-0850FNFAPU-1
SKU: 12365798
Sold & shipped by

About this product

Toughpower SFX Platinum series is 80 PLUS Platinum certified and compatible with ATX 3.1 specifications. Designed with a native 12V-2x6 connector.

Features
  • Compact Power, Limitless Performance

    The Toughpower SFX Platinum series is built to support next-gen hardware, meeting the latest Intel SFX 12V 4.1 and ATX 12V 3.1 standards. With its native PCIe 12V-2x6 (12+4pin) modular interface, it efficiently powers PCIe 12+4pin graphics cards. This series not only achieves 80 PLUS Platinum efficiency but also guarantees stability, durability, and reliability.

  • No Matter the Case Size, We've Got You Covered

    The dimensions of the Toughpower SFX Platinum measure 125mm(W) x 63.5mm(H) x 103.8mm(D). It comes with an SFX to ATX adapter bracket as an accessory which gives users more options when choosing the ideal case for the build.

  • Fully Compatible with ATX 3.1 Standards

    Toughpower SFX Platinum series is fully compatible with ATX 3.1 Specifications which supports up to 200% power excursion, reaches 60% low load efficiency and complies with required power supply timing standards.

  • PCIe Gen 5.1 Ready

    Toughpower SFX Platinum series comes with a PCIe 12V-2x6 connector to offer powerful and stable performance allowing the PSU to natively run next-generation GPUs.The wattage marked on the PCIe 12+4-pin cable connector represents the recommended wattage.The bundled PCIe Gen 5.1 (12+4pin) cable connector of the Toughpower SFX Platinum 750W can deliver up to 300W for PCIe 12+4pin graphics cards.

  • Made to Comply with the Latest Graphics Cards

    Ready to supply graphics cards according to their different ways of connections, the Toughpower SFX Platinum series is designed to support NVIDIA and AMD graphics cards, it supports 8-pin slots for AMD graphics cards & some RTX 40 series graphics cards, it also comes with 1 x 12V-2x6 connector for RTX 40 series cards with a PCIe 12+4pin connector.

  • Be Smart, Stay Quiet

    Equipped with a 90mm fluid bearing fan for superior airflow. Plus, the built-in Smart Zero Fan feature keeps it silent until the load hits 30%, reducing unwanted noise.

  • 80 PLUS Platinum Certified

    80 PLUS Platinum certification means the Toughpower SFX Platinum series converts power efficiently, saves energy through its high efficiency up to 92%, resulting in lower power loss and heat buildup inside the power supply.

  • <30mV Low Ripple Noise Design

    Top-end build quality with low ripple noise. All ripples are lower than 30mV on +12V, +5V or +3.3V from 0% to 100% load to ensure a stable operation and keep your performance-critical components to function reliably for longer.

  • Extremely Strict Voltage Regulation <±2%

    The voltage regulation is more strict than Intel’s standard +5%,-7% for major rails and ±10% for -12V, is set to no more than ±2% for major rails, providing steady clean power through exceptional voltage stability.

  • 17ms and up Hold Up Time

    During a power interruption, your computer might shut down or reboot. We make sure that the SFX Platinum series will deliver at least 17ms at 80% workload, without system reboot or resetting.

See all features
Specifications
  • Wattage
    850 watts
    Modular
    Fully modular
    Energy Efficiency
    80 PLUS Platinum
    ATX Connector
    24pin Main connector (300mm) x 1
    PCIe Connector
    1 x PCI-E 12+4Pin connectors (400mm) x 1. 2 x PCI-E 6+2Pin connectors (450mm + 150mm) x 1
    Peripheral Connector
    4 x Peripheral connectors (300mm + 150mm + 150mm + 150mm) x 1
Sponsored

Reviews

Rating 4.7 out of 5 stars with 3 reviews

5 star rating. 2 reviews4 star rating. 1 review
100% would recommend to a friend

Customer Images

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.

From the Manufacturer

Compare similar products

Thermaltake - Toughpower SFX 850W 80Plus Platinum ATX 3.1 Standard Power Supply - Black
Thermaltake - Toughpower SFX 850W 80Plus Platinum ATX 3.1 Standard Power Supply - Black
4.7(3)

Toughpower SFX Platinum series is 80 PLUS Platinum certified and compatible with ATX 3.1 specifications. Designed with a native 12V-2x6 connector.

Thermaltake - Toughpower SFX 1000W 80Plus Platinum ATX 3.1 Standard Power Supply - Black

Toughpower SFX Platinum series is 80 PLUS Platinum certified and compatible with ATX 3.1 specifications. Designed with a native 12V-2x6 connector.

Lian Li - SP 850W SFX PSU - Platinum, ATX 3.1, PCIE 5.1, Low-Noise, Modular, 10 Year Warranty (SP0850P.B) - Black

Lian Li SP Platinum 850W SFX Form Factor Power Supply with 12V-2x6 Connectors - ATX 3.1 & PCIE 5.1 Compliant - Low-Noise - Fully Modular - 105°C Capacitors - 10 Year Warranty - Black (SP0850P.B)

Thermaltake - Toughpower SFX 750W 80Plus Platinum ATX 3.1 Standard Power Supply - Black
5.0(1)

Toughpower SFX Platinum series is 80 PLUS Platinum certified and compatible with ATX 3.1 specifications. Designed with a native 12V-2x6 connector.

Specs

Questions & Answers
  • Does this power supply have a Smart Zero Fan feature?

    Yes, the power supply is equipped with a Smart Zero Fan feature that keeps the fan silent until the load reaches 30%.

    This question and answer was generated by AI based on customer and product data.
  • What is the voltage regulation of this power supply?

    The voltage regulation is stricter than Intel's standard and is set to no more than ±2% for major rails.

    This question and answer was generated by AI based on customer and product data.
  • How is this power supply designed for compatibility with graphics cards?

    This power supply is designed to support NVIDIA and AMD graphics cards, including 8-pin slots for AMD cards and some RTX 40 series, and a 12V-2x6 connector for RTX 40 series cards with a PCIe 12+4pin connector.

    This question and answer was generated by AI based on customer and product data.
  • What is the maximum ripple noise of this power supply?

    The Thermaltake power supply has a low ripple noise design with all ripples below 30mV on +12V, +5V, or +3.3V from 0% to 100% load.

    This question and answer was generated by AI based on customer and product data.
  • Is this power supply compatible with ATX 3.1 standards?

    Yes, the power supply is fully compatible with ATX 3.1 specifications, supporting up to 200% power excursion and 60% low load efficiency.

    This question and answer was generated by AI based on customer and product data.
Ask a question
No content

Customers often buy these together

Sponsored

Finance Options

My Best Buy® Credit Card
Choose a benefit:Or
Buy Now, Pay Later

Finance Options

My Best Buy® Credit Card
Choose a benefit:Or
Buy Now, Pay Later