ASUS ROG Thor 1200W Platinum III PSU (80 Plus Platinum Certified, ATX 3.1, GaN MOSFET, GPU-First Intelligent Voltage Stabilizer, Magnetic OLED Display, Turbo Mode, 10-Year Warranty)

GaN MOSFET delivers up to 30% more power efficiency than standard MOSFETs and a more organized internal layout for cooler operation

Form FactorATX

About this item

  • 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
Category: PC PartsInternal Power SuppliesRanked #99 of 616 in PC Parts
8.4Our score
Our verdict

GaN MOSFET delivers up to 30% more power efficiency than standard MOSFETs and a more organized internal layout for cooler operation

Ranked #99 in PC Parts · 4 things we like

Quick answer The ASUS ROG Thor 1200W Platinum III PSU scores 8.4/10 with us. Amazon owners rate it 4.2 out of 5 across 77 reviews, below the 4.5 average of the 82 internal power supplies we track.

The ASUS ROG Thor 1200W Platinum III PSU, 80 PLUS Platinum certified and ATX 3.1 compliant, delivers 30% more efficiency with GaN MOSFET, GPU-First voltage stabilizer boosting graphics power by 45%, a magnetic OLED display, Turbo Mode for extended power, premium cooling, and a 10-year warranty.

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Product information

22 specifications
Compatible Devicespersonal computer
Connector Type Used on CableATX
Output Wattage1200 watts
Form FactorATX
Wattage1200 watts
Cooling MethodAir
Number of Fans2
Maximum Input Voltage240 volts_of_alternating_current
Minimum Input Voltage100 volts_of_alternating_current
System Bus Connector TypeATX
Item Dimensions7.5 x 5.9 x 3.3 inches
Item Weight5.3 pounds
EU Spare Part Availability Duration10 years
Model NameROG-THOR-1200P3-GAMING
BrandASUS
Number of Packs1
Number of Items1
Unit Count1 Count
Model NumberROG-THOR-1200P3-GAMING
Mfr Part NumberROG-THOR-1200P3-GAMING
Warranty Description10 Year Warranty
Connector TypeATX

Pros & cons

What we like
  • 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
What could be better

    ASUS ROG Thor 1200W Platinum III PSU: questions & answers

    Is the ASUS ROG Thor 1200W Platinum III PSU worth buying?

    Yes, for most buyers it is a safe choice. We score the ASUS ROG Thor 1200W Platinum III PSU 8.4 out of 10. Amazon owners rate it 4.2 out of 5 across 77 reviews, below the 4.5 average of the 82 internal power supplies we track.

    What options does the ASUS ROG Thor 1200W Platinum III PSU come in?

    Amazon lists 7 options. Style: PCIe Cable (12V-2x6), THOR II|ATX, Gen II|THOR, Gen III|THOR. Size: ROG Equalizer, 850W, 1200W, 1000W|OLED Panel, 1000W, ROG Equalizer|White. Pick an option on this page and the button opens exactly that model.

    What are good alternatives to the ASUS ROG Thor 1200W Platinum III PSU?

    Similar, well-rated internal power supplies in our catalog: ASUS ROG Thor 1600W Titanium III Power Supply (8.6/10, 4.3 stars from 23 owners); ASUS ROG Strix 1000W Platinum White Edition (9.0/10, 4.5 stars from 76 owners); ASUS ROG Loki SFX-L 1200W Titanium PSU (9.0/10, 4.5 stars from 51 owners).

    Customer reviews

    All reviews on Amazon
    4.277 global ratings
    5 star80%
    4 star10%
    3 star0%
    2 star0%
    1 star10%

    Breakdown from the 10 most helpful reviews we imported.

    T
    t.b.
    Verified purchaseAugust 4, 2026
    Love it

    I have been using this since I bought it and there is no issues it looks nice The equalizer or whatever the cable is called works great along with the 5090.

    N
    Nick Ellinos
    Verified purchaseMarch 17, 2026
    Great PSU!

    Does the job well! Much less random crashes from my GPU taking too much power. Came with more than enough cables for everything I’d need. No difference in volume compared to before coming from a 750w EVGA. It’s definitely on the spendy side but worth it in my opinion. The only downside I’ve found is that when it’s orientation in the fan down position the OLED screen is upside down which makes it look like gibberish until you get used to it 😅

    C
    caL
    Verified purchaseMay 17, 2026
    Asus Thor

    What an absolute powerhouse of a PSU! This thing is the nicest power supply I’ve ever had. It was so easy clicking in the threaded cables that it came with. They made it very easy to manage the cables. I got it when it was on a very nice discount and boy was it worth every penny. This thing comes with a side screen that lets you read the wattage. No issues and well made

    M
    Mark
    Verified purchaseJuly 1, 2026
    Overpriced and a Complete Piece of Junk!

    I have owned a lot of power supplies, from a lot of different brands over the years but this is hands down the absolutely worst power supply I have ever attempted to use. I bought 2 of these units because I was upgrading graphics cards in two PCs. I wanted these because of the ROG Equalizer cable that was supposed to be bundled with new units, spoiler alert, they were not. I spent a few hours meticulously putting together a new PC with the aforementioned 5090, running all my cables and making things look neat. It comes time to plug in the PC and that's when things got interesting. The RGB on t

    S
    Solastrath
    Verified purchaseMay 25, 2026
    Best PSU If You Can Afford It

    The best PSU I've ever purchased for my gaming PC! I've had Corsair, EVGA, and many different off-brand PSU's. The EVGA was a very close runner up to this one. The ASUS ROG Thor 1200W has extraordinary quality, comes with all cables needed, and the wattage is more than high enough for anything I can throw at it.Pros:- Great build quality- High quality cables- High wattage- Sleek look- EfficientCons:- Expensive

    J
    Jose Cardozo
    Verified purchaseMay 15, 2026
    Great PSU, no so great cables.

    Come with no issue, new version display the ROG logo every 10 seconds, but I hate the cables so much, they're so basic for such a high end PSU, I HATE Etched cables, next time at least put 16awg in every pin and crimp it properly.

    B
    Blueshirtfan
    Verified purchaseMay 10, 2026
    Handles my 5090 no problem

    I mean it looks amazing and def helped my pin load on my 5090 as it’s never been this good. Cables are super long and very easy to work with and look amazing. There is an anti burn feature that as it displays the watts, a Asus symbol pops up and then back to wattage. I have read some people think it’s broken but it is as intended.

    D
    DavidH
    Verified purchaseAugust 13, 2026
    Stable power delivery and quiet operation

    Massive power delivery. Incredibly stable. Miraculously quiet. Beautiful cabling. Real time info with high refresh rate. What more can you say about a power supply? Oh, it's pretty too and it makes pretty colors.

    Customer reviews are shown as published on Amazon and are not written by Do Best Deal.