ASUS Power Supply Units

ROG THOR, ROG LOKI, ROG STRIX, TUF GAMING, PRIMES SERIES PSU group photo displayed on podiums

Best power supplies for your PC builds

We leverage many years of experience in power delivery and cooling from our venerable motherboard and GPU product lines to produce industry-leading power supply units designed to elevate a wide variety of builds. Learn about how to choose power supplies and how to estimate your system’s energy consumption. Explore your series options below.

ROG THOR series PSU and ROG Strix RTX 4090 graphics card in the PC build

How to choose a PSU​

Consider how many watts you need for your system, and the PSU’s efficiency rating, quietness and aesthetic that matches your build.

Total Wattage​

Choose the amount of power that can handle your build – and possible additions and upgrades down the road.

ROG THOR series PSU with power icon

Noise Level

ASUS recommends a PSU with a high LAMBDA Noise Level Certification from Cybenetics Labs.

icons of A++, A+ and A LAMBDA Noise Level Certification from Cybenetics Labs

Power Efficiency​

Select a PSU based on the 80 Plus efficiency rating system for low heat and noise to ensure you have the ideal model you need.

80 Plus efficiency rating chart for ROG Thor series

ROG Thor

80 Plus efficiency rating chart for ROG Loki series

ROG Loki

80 Plus efficiency rating chart for ROG Strix series

ROG Strix

80 Plus efficiency rating chart for TUF Gaming series

TUF Gaming

80 Plus efficiency rating chart for ASUS Prime series



ASUS offers a wide selection of PSUs with features such as Aura Sync and OLED displays to match the look and feel of your PC.

ROG THOR series PSU with Aura sync

PSU Wattage Calculator​

Choose the right PSU wattage for your build with the calculator below. CPU and GPU power consumption will be greatly affected by overclocking, so we’ve provided PSU wattage recommendations for both overclocked and non-overclocked configurations. If you plan to upgrade your build in the future, we suggest selecting a PSU based on overclocked wattage.





Recommended Wattage

0 Watts
  • Recommended wattage is an estimation of system power demand. Actual power demands may vary based on specific components, usage, and many other factors.
  • Testing was conducted by ASUS using pre-production PSUs.
  • Overclocked power consumption is an estimated figure derived from the maximum CPU TDP and GPU TGP.
  • Stock power consumption data is derived from default GPU TGP and CPU TDP (the default CPU TDP is listed below): Intel Core i3 and Core i5: Intel Core i5-7640X, TDP = 112W; Intel Core i7: Intel Core i7-9800X, TDP = 105W ~ 165W; Intel Core i9: Intel Core i9-10980XE, TDP = 165W; Intel HEDT Series: Intel® Xeon® Platinum 8380HL, TDP = 280W; AMD Ryzen 3 and Ryzen 5: AMD Ryzen™ 5 3600X, TDP = 112W; AMD Ryzen 7: AMD Ryzen™ 7 3800XT, TDP = 105W ~ 165W; AMD Ryzen 9: AMD Ryzen™ 9 3900XT, TDP = 165W; AMD Ryzen Threadripper: AMD Ryzen™ Threadripper™ 3990X, TDP = 280W.



ROG THOR series PSU in 45 degree angle


ROG Thor power supplies are designed to elevate flagship builds. Brushed aluminum and a mirrored side panel perfectly compliment ROG motherboard aesthetics. Aura Sync RGB lighting and an integrated OLED display enable unique customization and monitoring options. Under the hood, high-quality components, a 135 mm PWM-controlled fan and large heatsinks empower Thor PSUs to deliver incredible performance while maintaining whisper-quiet operation.


ROG LOKI Series PSU showing the fan

Silent Power for SFF build​

Taking after the ROG Thor, ROG Loki power supplies brandish the same enthusiast-grade components and features, all packed into an SFX-L form factor. Boasting quiet operation and high performance, the Loki is primed to power your next SFF build.


ROG STRIX series PSU in 45 degree angle

Frozen Silence​

ROG Strix power supplies are designed to fulfill the demands of high-end gaming rigs. Premium components and customized thermal solutions made possible by years of industry experience provide the efficiency, performance and quality needed to fuel the latest processors and graphics cards.

TUF Gaming

TUF GAMING Series PSU showing the fan

Built For The Long Haul

TUF Gaming power supplies are designed to beef up mainstream rigs with military-grade components, while an advanced Axial-tech fan with dual ball bearings increases overall lifespan. It is the perfect PSU to slot into a TUF Gaming build and power through AAA games for years to come.


ASUS PRIME Series PSU in 45 degree angle

Prime Performance​

With 80+ Gold certification and dual ball bearing fans, the ASUS Prime PSUs bring efficient and durable power delivery to high-performance workstations, all-round PCs and gaming rigs.


ROG THOR series PSU in 45 degree angle on an icy ground


Power your next build with an ROG THOR 1600W Titanium or ROG THOR Platinum II PSU

ROG LOKI Series PSU showing the fan


Power your high-octane, small form factor PC with ROG’s Loki PSUs

ROG STRIX series PSU in 45 degree angle with concrete floor and pink lighting shown from the rear


Pump high-end power into your gaming PC with ROG Strix 650W and 750W PSUs

TUF GAMING Series PSU showing the fan with a concrete setting shown from the rear


ASUS TUF Gaming Gold PSUs amp up affordable efficiency for next-gen gaming PCs

one ASUS PRIME shows white outlook and one shows black outlook with space shown from the rear


Power, reliability and style: introducing the ASUS Prime 750W and 850W Gold

ROG LOKI Series PSU with galaxy shown from the rear


ROG goes all-in on ATX 3.0: Get your free 16-pin power cable today