ASUS ROG Thor 850W Platinum Power Supply: features, specs and who it suits

The ASUS ROG Thor 850W (model ROG-THOR-850P) is a fully modular PC power supply with 80+ Platinum efficiency, an OLED screen that shows live power draw, and addressable RGB lighting. ASUS describes it as the first ROG power supply. Here is what its main features mean.

What 850 watts and 80+ Platinum mean

The wattage is the maximum power the unit can deliver to your components. 850W is a common choice for systems with a high-end graphics card and a fast processor, with some headroom. The 80+ Platinum certification is an efficiency grade: it means the unit converts mains power to PC power with low waste at tested loads. Higher efficiency typically means less heat, which helps keep the fan quiet.

The OLED power display

The standout feature is the OLED Power Display on the unit, which shows real-time power draw. This lets you see how much your system pulls when idle, browsing or gaming. It is a handy way to check how your PC uses power, though a power-hungry build will still need the right size of supply.

0dB cooling

ASUS says the unit has 0dB cooling, meaning the fan stays off at light loads, so the supply is silent when the PC is idle or doing simple tasks. A 135mm wing-blade fan takes over as load rises. The fans are dustproof to IP5X, which ASUS lists as protection against dust, and the unit has integrated ROG heatsinks for cooler operation.

Fully modular cables

Fully modular means every cable detaches from the supply, so you plug in only the ones your build needs. That typically makes cable routing tidier and improves airflow in the case. Check what cables are supplied against your motherboard and graphics card connectors.

Build quality and lighting

The listing says the unit uses 100% Japanese capacitors for stability and durability. For lighting, the unit supports Aura Sync addressable RGB, which can be synchronised with other Aura Sync products from ASUS and compatible partners.

Size and power input

The supply measures 7.4 x 5.9 x 3.3 inches and weighs 2.2 lb (about 1 kg). The AC input is 100-240Vac, so it works with standard mains power in many regions. Always follow the manual for installation and ensure the unit is switched off and unplugged while you work inside the PC.

Who it suits

It suits enthusiasts building a showcase PC with a visible power supply and RGB lighting, and builders who like to monitor power use. It also suits those who want a silent PC at idle.

What to check before you buy

• Wattage: add up your parts' power needs, especially the graphics card, and leave headroom.
• Connectors: confirm that the cables match your graphics card and motherboard, including any newer power connector types.
• Case fit: check your case supports an ATX supply of this length and has a clear view if you want to see the OLED display.
• Lighting software: Aura Sync works best with other compatible parts.
• Warranty: the listing gives no warranty terms, so check the product documentation.

The short version

• A fully modular 850W power supply, model ROG-THOR-850P.
• 80+ Platinum efficiency and 100% Japanese capacitors.
• 0dB fan mode with a dustproof IP5X wing-blade fan.
• OLED Power Display for real-time power draw monitoring.
• Aura Sync addressable RGB; 100-240Vac input; 2.2 lb.

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