ROG Thor 1200W Platinum III
GeForce RTX 50 Ready
ATX 3.1 compatible

ROG Thor 1200W Platinum III

Featuring a GaN MOSFET, “GPU-First” patented intelligent voltage stabilizer and a magnetic OLED display, ROG Thor 1200W Platinum III delivers unmatched performance and rock-solid stability for your ultimate PC build

  • GaN MOSFET delivers up to 30% more power efficiency than standard MOSFETs and a more organized internal layout for cooler operation.    
  • "GPU-First" voltage sensing with patented intelligent voltage stabilizer enhances voltage delivery to your graphics card by up to 45% for smoother gaming and unwavering performance. 
  • Magnetic OLED display shows a real-time power draw and can be swapped to either side of the unit to accommodate fan-up or fan-down PSU installation. 
  • Turbo Mode: Premium components and a fine-tuned fan curve unlock support for extended power excursions. 
  • ROG heatsinks and a fully aluminum enclosure synergize for superior cooling, keeping your system thermals under control. 
  • Dual-ball-fan bearings can last up to twice as long as sleeve bearing designs. 
  • ATX 3.1 compatible: ROG Thor Platinum III is compliant with the ATX 3.1 standard, ensuring enhanced voltage and current regulation for the latest hardware. 
  • Etched modular cables with a pliable premium material ensure effortless cable management and exceptional safety. 
  • Lambda A++ Certification: Certified low noise levels, below 15 dB.
  • 80 PLUS & Cybenetics Platinum certified: ROG Thor III leverages low-ESR capacitors and premium components for industry-leading power efficiency. 
  • 10-year warranty included. 

Awards

enthusiast award

ASUS ROG THOR III 1200W Platinum PSU Review

Extreme Performance

ASUS ROG THOR 1200W Platinum III Power Supply Review

Media Reviews

TuttoTech

The ASUS ROG Astral GeForce RTX 5080 OC Edition board is described as ‘the most beautiful custom ever’, with meticulous attention to detail and robust construction. The ROG Astral offers a significant performance boost over the Founders Edition, thanks to the factory overclock and the potential for further overclocking. During gaming sessions and benchmarks, the board maintains temperatures around 61°C, a remarkable achievement considering the high performance.

Hardware Upgrade

The ASUS ROG Astral GeForce RTX 5090 OC is a top-of-the-line graphics card based on Blackwell architecture, with 32GB of GDDR7 memory and 21,760 CUDA cores. It offers excellent 4K performance, advanced four-fan cooling, great overclocking capability and a premium design. Ideal for extreme gaming, AI and professional applications, with advanced ray tracing and DLSS support.

Overclockers.ua

The tested ASUS ROG Thor 1200W Platinum III delivers the declared characteristics with excellent stability of output voltages and low noise.

Root Nation

If you want everything at once, and even more, ASUS ROG Thor 1000W Platinum III will be just right for you.

ROG THOR 1200W PLATINUM III

ROG THOR 1200W PLATINUM III ULTIMATE POWER. UNMATCHED STABILITY.

The ROG Thor 1200W Platinum III delivers the ultimate power and stability demanded by gamers. A next-gen GaN MOSFET delivers superior efficiency, and "GPU-First" voltage sensing features a patented-intelligent voltage stabilizer, ensuring top-tier performance and stability. Meanwhile, there is Turbo Mode for maximum cooling when overclocking or for other demanding workloads.

The ROG Thor 1200W Platinum III also features the signature Thor OLED display, now upgraded for easy magnetic attachment – it can be swapped to either side of the unit to accommodate fan-up or fan-down PSU installation.

  • GaN MOSFET

  • "GPU-FIRST" Intelligent Voltage Stabilizer

  • 80 PLUS Platinum

  • Cybenetics Lambda A++

  • PCIe Gen 5.1 Ready

  • Future Ready

  • 10-Year Warranty

ENGINEERING

  • Intelligent Voltage Stabilizer
  • High-performance Copper Pins
  • ATX 3.1Compatible
  • Lambda A++Certification
  • 80 PLUS PlatinumCertification
GaN MOSFET with PCB themed background

GaN MOSFET

The ROG Thor 1200W Platinum III PSU boasts an innovative GaN MOSFET that deliver up to 30% more power efficiency than standard MOSFETs. Plus, the smaller size of a GaN MOSFET allows for a more organized internal layout. This optimized design provides space for larger heatsinks and enhanced airflow, improving heat dissipation.

Voltage Sensing Mode

"GPU-FIRST" Voltage Sensing

with patented intelligent voltage stabilizer (IVS)

Activate the "GPU-First" voltage sensing by connecting the IVS cable. This innovative feature enhances voltage stability by up to 45%, even during demanding gaming sessions and overclocking scenarios. If you prefer conventional CPU-focused voltage sensing, simply disconnect the IVS cable. With this advanced technology, you can experience smooth and consistent gaming.

Disclaimer: The "GPU-First" intelligent voltage stabilizer is designed exclusively for 16-pin PCIe power cables. This feature is not available for 8-pin PCIe power cables.

Connector of ROG Strix 1000W Platinum with PCIe connectors highlighted

*Illustration for reference only.

High-performance Copper Pins

Upgraded PCIe® connectors feature superior thermal conductivity to help ensure cooler operation and improved power delivery efficiency. This translates to a significant 29% reduction in connector temperatures (up to 12.3°C), promoting optimal performance and stability for even the most demanding graphics cards.

a 12V-2x6 16-pin cable

ATX 3.1 Compatible

ATX 3.1 ushers in tighter voltage and current regulation standard for next-gen hardware - and the ROG Thor 1200W Platinum III arrives ahead of the curve with full compliance. A 16-pin PCIe cable capable of sending up to 600 watts of power to PCIe 5.1 graphics cards is bundled with this PSU, readying your build for the next gen.

Please see the FAQ section for specific instructions on the proper usage of this advanced 16-pin cable.

[Graphics Card & PSU] How to plug in the 16-pin power cable properly
Cybenetics Lambda A++ logo

Cybenetics Lambda A++ Certification

Quietly deviant

On average, ROG Thor 1200W Platinum III emits less than 15 dB of noise – earning a coveted Cybenetics Lambda A++ certification.

Efficiency curve of ROG Thor 1200W PLATINUM III with 80 plus platinum logo

80 PLUS Platinum Certification

The ROG Thor 1200W Platinum III utilizes low-ESR Japanese capacitors to ensure efficient operation. These upgrades enable 80 PLUS Platinum certification, which guarantees 89% efficiency at 100% load and 92% efficiency at 50% load. The increased efficiency results in less heat, reduced fan noise, and increased reliability.

COOLING

  • Dual BallFan Bearings
  • 0dBTechnology
Close up on the ROG heatsinks

*Illustration for reference only.

ROG Heatsinks

Cool under pressure

ROG heatsinks facilitate lower temperatures, longer component lifespan, and extended 0dB operation.

dual ball fan bearing shows the balls inside the bearing

*Illustration for reference only.

Dual-Ball-Fan Bearings

2X longer lifespan

Dual-ball bearings boast a remarkable lifespan of up to 80,000 hours, twice as long as sleeve bearings and exceeding even fluid dynamic bearings. This helps to ensure long-lasting and reliable cooling with minimal noise for the ROG Thor 1200W Platinum III.

fan noise curve of ROG Strix 1000W Platinum

0dB Technology

Quiet intelligence

To reduce noise output, the PWM-controlled fan shuts off entirely when the PSU load is at 30% or below.

In 0dB mode (button pressed), the fan continues to spin when transitioning from high to low loads, ensuring safe temperatures are reached before stopping.

EXPERIENCE

  • TurboMode
  • Etched Cables
  • DIY-friendly CPU Power Connector
  • AuraSync
  • 10-yearWarranty

Magnetic OLED Display

This detachable magnetic OLED display showcases real-time power draw, providing insights to your system's performance and efficiency. The magnetic attachment can be swapped to either side of the unit for fan-up or fan-down PSU installation, depending on the design of your case, so you can maintain optimal airflow without compromising monitoring.

Turbo Mode

Turbo Mode unlocks support for extended power excursions, courtesy of a fine-tuned fan curve and premium components. Enjoy unwavering performance when you need it most, and switch between peak performance and ultimate silence with just a press of the Turbo Mode button on the rear of the PSU.

Turbo Mode

Fan Curve

Close up on a set of CPU power cable connect to the motherboard Close up on a set of CPU power cable connect to the motherboard
Higher RPM > Support for extended power excursion
(for demanding tasks)

Time For Power Excursion

Condition: ROG THOR 1200W Platinum III, 160% power excursion

Close up on a set of CPU power cable connect to the motherboard Close up on a set of CPU power cable connect to the motherboard
Animation showing Etched Modular Cables.

Etched Cables

Made from a pliable premium material, these etched cables are easily flexible during installation, and they operate at temperatures 50°C lower than the safety limit when routed for cable management. These cables also meet the rigorous standards of the UL1581 flame test and UL758 certification, helping to ensure a smooth PC DIY experience and exceptional safety.

Close up on a set of CPU power cable connect to the motherboard

DIY-friendly CPU Power Connector

Engineered with a distinct clip between the 4+4 pin connectors and a unique color scheme, this CPU power cable simplifies cable identification during installation. The integrated clip helps to ensure a secure and effortless connection to the motherboard's CPU power connector, streamlining the build process and instilling confidence in your PC setup.

10-year warranty logo

10-year Warranty

A decade of power

We're so confident about the reliability of the ROG Thor 1200W Platinum III that we back it with a 10-year warranty.

*Core product operation is guaranteed for 10 years. The RGB LEDs are subject to a 3-year warranty.

CUSTOMER REVIEWS

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Disclaimer

  • Products certified by the Federal Communications Commission and Industry Canada will be distributed in the United States and Canada. Please visit the ASUS USA and ASUS Canada websites for information about locally available products.
  • All specifications are subject to change without notice. Please check with your supplier for exact offers. Products may not be available in all markets.
  • Specifications and features vary by model, and all images are illustrative. Please refer to specification pages for full details.
  • PCB colour and bundled software versions are subject to change without notice.
  • Brand and product names mentioned are trademarks of their respective companies.
  • Unless otherwise stated, all performance claims are based on theoretical performance. Actual figures may vary in real-world situations.
  • The actual transfer speed of USB 3.0, 3.1, 3.2, and/or Type-C will vary depending on many factors including the processing speed of the host device, file attributes and other factors related to system configuration and your operating environment.