The lowest price from 30 days before the promotion:
- Features
- Tech Specs
- Gallery
- Support

The Quietest 850W Platinum Power Supply
Back with a vengeance, the second iteration of the ROG Thor 850W Platinum wields cooling and component upgrades that make it the quietest PSU in its class*. And to compliment the latest high-end ROG motherboards and bring additional flair to beastly rigs, we've added a mirrored side panel that neatly frames the OLED display.
Based on Cybenetics PSU test result database entries before October 2021. For more information, please refer to here.
COOLING

ROG Heatsinks
ROG heatsinks have 2x more volume than traditional designs, facilitating lower temperatures, longer component lifespan, and extended 0dB operation.

Wing-blade Fan Design
A 135mm Wing-blade fan with PWM control delivers lower noise and keeps thermals in check.

Dual Ball Fan Bearings
Dual ball bearings boast a remarkable lifespan of 80,000 hours, lasting twice as long as sleeve bearings and exceeding even fluid dynamic bearings. Ensuring long-lasting, reliable cooling with minimal noise for ROG THOR series.

0dB Technology
To reduce noise output, the PWM-controlled fan shuts off entirely when the PSU load is 50% or below.

Lambda A++ Certification
Thor II cooling upgrades result in a coveted Lambda A++ noise rating, confirming the latest iteration wields menacing power in absolute stealth.
ENGINEERING

High-performance Copper Pins
Upgraded PCIe® connectors featuring superior thermal conductivity ensure cooler operation and improved power delivery efficiency. This translates to a significant 29% reduction in connector temperatures (up to -12.28°C), promoting optimal performance and stability for even the most demanding graphics cards.


80 Plus Platinum Certification
The ROG Thor 850W Platinum II utilizes low-ESR Japanese capacitors to ensure efficient operation. These upgrades enable an 80 PLUS Platinum certification, which guarantees 89% efficiency at 100% load and 92% efficiency at 50% load. The increased efficiency results in less heat, reduces fan noise, and increases reliability.
EXPERIENCE
-
Static
Always on
-
Breathing
Fades in & out
-
Strobing
Flashes on & off
-
Color cycle
Fades between the colors of rainbow
-
Rainbow
A rolling multi-color flow
-
Starry night
A display that mimic the nighttime sky
-
Music
Pulses to the beat of your music
-
Smart
Changes color with CPU/ GPU load
-
Adaptive Color
Matches color to a selected region on your screen
-
Dark
Lighting is turned off
Aura Sync
Customize the Aura ROG logo and/or add RGB lighting strips to accent your showcase build.
* If the connector cable is not used, the default color effect is rainbow.* To enjoy Aura Sync, you’ll need an Aura Sync-compatible ASUS or ROG motherboard. Similarly, the Smart Mode lighting effect, which reflects GPU temperature, requires use of a compatible ASUS or ROG graphics card.
Etched Cables
Made from a soft premium material, these etched cables can be bent easily during installation, and they operate at temperatures 50°C lower than the safety limit when bent 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.

PCIe Gen 5.0 Ready
Each ROG Thor 850W Platinum II PSU is bundled with a 16-pin PCIe cable that can pipe up to 600W of power to PCIe Gen 5.0 graphics cards. Get ready for the future of power delivery.

10-year Warranty
The ROG Thor 850W Platinum II is backed with a 10-year* warranty.
*Core product operation is guaranteed for 10 years. The OLED panel and RGB LEDs are subject to a 3-year warranty.CUSTOMER REVIEWS
Recommended Products
ROG-THOR-1200P
ROG Thor 1200W Platinum Power Supply Unit stands out with Aura Sync and an OLED display
ROG-THOR-850P
ROG Thor 850W Platinum Power Supply Unit stands out with Aura Sync and an OLED display
ROG-STRIX-650G
The ROG Strix 650W Gold PSU brings premium cooling performance to the mainstream.
ROG-STRIX-550G
The ROG Strix 550W Gold PSU brings premium cooling performance to the mainstream.
ROG-STRIX-850G-WHITE
The ROG Strix 850W White Edition PSU, with 80 PLUS Gold certification, brings premium performance to the mainstream.
ROG LOKI SFX-L 750W Platinum
ROG Loki 750W Platinum is a high-wattage PSU for boundary-breaking SFF builds.
ROG LOKI SFX-L 850W Platinum
ROG Loki 850W Platinum is a high-wattage PSU for boundary-breaking SFF builds.
ROG STRIX 750W Gold Aura Edition
ROG Strix 750W Gold Aura Edition is a cool, quiet and powerful PSU, engineered for efficiency in striking style.
Related Products
ROG Strix Helios
ROG Strix Helios RGB ATX/EATX mid-tower gaming case with tempered glass, aluminum frame, GPU braces, 420mm radiator support and Aura Sync
ROG Strix Helios White Edition
ROG Strix Helios White Edition RGB ATX/EATX mid-tower gaming case with tempered glass, aluminum frame, GPU braces, 420mm radiator support and Aura Sync
ROG Clavis
ROG Clavis USB-C to 3.5 mm gaming DAC with AI Noise-Canceling Mic, MQA rendering tech, ESS 9281 QUAD DAC™, audio amplifier and Aura Sync. ROG Clavis is compatible with PCs, mobile devices and laptops
AeroActive Cooler 5
Play cool!
ROG Eye S
Full HD 60 fps webcam with AI-powered, noise-canceling mics for superior live-streaming audio and a compact and foldable design that’s easy to carry and attach instantly to any laptop
ROG Strix Arion S500
ROG Strix Arion S500 Portable SSD — USB-C®3.2 Gen 2, NVMe SSD with DRAM and large SLC cache for up to 1050 MB/s transfers, 500 GB capacity, 256-bit AES disk and data encryption, NTI Backup Now EZ software, ASUS Aura Sync
ROG Cetra True Wireless
ROG Cetra True Wireless gaming headphones with low-latency wireless connection, ANC, up to 27-hour battery with wireless-charging case, IPX4 water resistance and support for EQ/virtual 7.1 via Armoury Crate
ROG Herculx Graphics Card Holder
The robust ROG Herculx Graphics Card Holder securely fortifies even the most powerful cards, plus offers an easy-to-use design and extensive compatibility.
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.
- 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 color 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.
- For pricing information, ASUS is only entitled to set a recommendation resale price. All resellers are free to set their own price as they wish.
- Price may not include extra fee, including tax、shipping、handling、recycling fee.