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Clear out junk files and repair common Windows errorsFree Scan →Scan for outdated or missing drivers - takes under a minuteDriver Scan →Yes—ASUS says its ROG Thor 3000W Titanium III Edition 20 can support up to four GeForce RTX 5090 graphics cards, but that configuration and the PSU’s full 3,000-watt output require 220–240 V input. On 115 V input, ASUS lists a maximum output of 1,600 W. Those figures describe the power supply’s rated capability, not a guarantee that a typical home circuit or any four-card PC configuration will be suitable.
What ASUS announced
The product in the announcement is the ASUS ROG Thor 3000W Titanium III Edition 20, introduced as part of ROG Edition 20 at Computex 2026. ASUS describes it as an extreme-build power supply and advertises support for configurations with up to four GeForce RTX 5090 cards. The supported four-card claim is explicitly tied to 220–240 V input on the ROG Thor product page.
That is a manufacturer-stated supported configuration, not independent validation of every combination of graphics cards, motherboard, processor, cooling system, and other components. ASUS’s announcement does not establish that all RTX 5090 models have the same power draw or that a four-GPU setup is appropriate for an ordinary gaming PC.
How much power it provides at each input voltage
| Input voltage | Maximum output listed by ASUS | What the rating means |
|---|---|---|
| 220–240 V | Up to 3,000 W | ASUS says the unit must use a 220–240 V outlet to reach its rated maximum. |
| 115 V | Up to 1,600 W | The listed maximum is lower than the 220–240 V rating. |
ASUS notes that maximum wattage depends on local power-grid specifications. Its product specifications also say the electrical system must meet the PSU’s requirements. A 3,000 W label therefore does not mean the unit can deliver 3,000 W from any household outlet or circuit; the supply, outlet, circuit, and local electrical installation all matter.
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- 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.
What features ASUS lists
ASUS lists several design features for the Thor. Its performance descriptions below are ASUS’s claims rather than independently measured results.
- GaN MOSFETs: ASUS says these improve efficiency and reduce heat, and claims up to 30% more power efficiency than standard MOSFETs in its ROG Edition 20 announcement.
- GPU-First Intelligent Voltage Stabilizer: ASUS claims it can improve voltage stability by up to 45%. That is a manufacturer claim, not an independent test result.
- ROG Equalizer 12V-2×6 cable: A listed cable feature intended for the PSU’s GPU power connections.
- Detachable magnetic OLED display and USB-C extender: The display can be positioned away from the power supply using the extender, according to ASUS.
- Protection features: ASUS lists over-current, over-temperature, over-voltage, over-power, short-circuit, under-voltage, surge, and no-load protection.
- Efficiency and warranty: ASUS lists 80 PLUS Titanium certification, a 10-year warranty for core product operation, and a three-year warranty for RGB LEDs.
Do not confuse the ROG Thor with ASUS’s Pro WS 3000W Platinum
ASUS also sells a separate 3000 W power supply, the Pro WS 3000W Platinum. It is a different model, positioned by ASUS for AI solutions, deep learning, and IT management. ASUS lists it as 80 PLUS Platinum, while the ROG Thor is listed as 80 PLUS Titanium. Specifications for one model should not be assumed to apply to the other.
Rank #2
- 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
What the announcement does not establish
ASUS’s official pages reviewed for this article do not establish a current retail price, regional stock, or an exact-model Amazon listing. Availability and pricing can differ by region and change over time, so check the local ASUS store or retailers for the specific Edition 20 model before buying. The available ASUS material also does not provide independent testing of the Thor’s efficiency or voltage-stabilizer claims.
Quick Recap
Best Value
- ROG heatsinks cover critical components. Lower temps result in a longer lifespan and reduced noise
- Axial-tech cooling: 120mm fan with PWM control for low noise and thermals kept in check
- ATX 3.0 Compatible: ROG Loki is compliant with ATX 3.0 guidelines and bundled with a 16-pin PCIe cable that can pipe up to 600W of power to PCIe Gen 5.0 graphics cards
- 80 PLUS Platinum certified: Up to 92% efficient for low heat and noise, and increased reliability
- · Aura Sync compatible: Ready to synchronize lighting effects across your gaming setup
Rank #4
- Lambda A plus plus Certification confirms the latest Thor wields menacing power in absolute stealth.
- ROG heatsinks cover critical components, delivering lower temperatures and reduced noise.
- A 135mm Axial-tech fan with PWM control delivers lower noise and keeps thermals in check.
- Built with 100 percent Japanese capacitors and other premium components to achieve 80 Plus Platinum Certification.
- OLED display monitors power draw in real time.
Rank #3
- 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
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
