- Tech Specs
- Where to Buy
The ROG Strix 550W Gold PSU brings premium cooling performance to the mainstream.
- ROG heatsinks cover critical components, delivering lower temperatures and reduced noise.
- Axial-tech fan design features a smaller fan hub that facilitates longer blades and a barrier ring that increases downward air pressure.
- Dual ball fan bearings can last up to twice as long as sleeve bearing designs.
- 0dB Technology lets you enjoy light gaming in relative silence.
- An 80 Plus Gold Certification is the result of Japanese capacitors and other premium components.
- Cosmetic customisation is enabled by a magnetic logo and stickers that help you reskin the visible side to your liking.
- Fully modular cables keep your rig neat and tidy.
- 10-year warranty included.
As a result, the ROG STRIX 550G is suitable for assembling a quiet mid-range gaming system with the possibility of overclocking, fans of the Republic of Gamers line and those wishing to assemble a PC in the same style with ASUS products.
The ROG Strix Series PSUs bring high-end cooling and premium components together for an ultra-quiet high-performance product aimed at core gamers. In terms of cooling, massive ROG heatsinks trickle down from the mighty ROG Thor series and Axial-tech fan design from our premium NVIDIA RTX™ graphics cards also make an appearance. Below the surface, low RDS (on) MOSFETs and premium Japanese capacitors take on power delivery with ease. The result is an incredibly quiet and efficient power supply with the reserves to handle the most intense gaming scenarios.
Let it sink in
The integrated ROG heatsinks have 2x more volume than traditional designs, resulting in significantly lower temperatures inside Strix PSUs. This extends the lifespan of components and allows 0dB operation for a longer duration than standard designs. The heatsinks are so effective that fan noise stays whisper quiet, even under full load.
Axial-tech Fan Design
Better, faster, stronger
Originally the result of R&D efforts for top-end ROG graphics cards, Axial-tech fan design features a smaller fan hub that facilitates longer blades and a barrier ring that increases downward air pressure. The enhanced efficiency allows the fan to keep things cool at low RPMs, resulting in less overall system noise and increased component lifespan.
Dual Ball Fan Bearings
2x longer lifespan
Different bearing types have unique pros and cons. In a PSU, durability is paramount, so we built a dual ball bearing setup that will last up to twice as long as a sleeve bearing design.
An onboard controller brings the 135mm fan to a standstill when total draw power (TDP) is below 40%, letting you enjoy light gaming in relative silence. Above 40% TDP, the fans automatically start up again.
GPU Tweak II
Monitor, tweak, and tune
The ASUS GPU Tweak II utility takes graphics card tuning to the next level. It allows you to tweak critical parameters including GPU core clocks, memory frequency, and voltage settings, with the option to monitor everything in real-time through a customisable on-screen display. Advanced fan control is also included along with many more features to help you get the most out of your graphics card.
XSplit offers a premium streaming experience with in-game annotations and other advanced features. Enjoy a free license with the purchase of select ASUS graphics cards. See you online!
Learn more about XSplit >
We've partnered with wtfast to help you to play free from lag, latency issues, and lost packets. With a 6-month subscription to the wtfast Gamers Private Network, you'll enjoy lower ping for a smoother, more fluid online gaming experience. Buy an ASUS graphics card - and don't be left waiting!
Learn more about wtfast >
Profit from GPU power
Quantumcloud is a simple and secure service that lets you effortlessly earn extra money by putting your idle GPU to work. Through an easy-to-use app, your computer can help run cloud-based applications, making you money in the process. Earnings are automatically transferred to your WeChat or PayPal account, and your privacy remains intact because Quantumcloud doesn't collect your personal data. Get started making money today!
Learn more about Quantumcloud >
A e s t h e t i c
Getting everything looking right can be a challenging aspect of any setup. The ROG Strix Series PSUs aim to make your life a little easier with a convenient magnetic logo and stickers that help you reskin the visible side to your liking.
Fully Modular Cables
Keep your rig neat and tidy with fully modular cables. One 24-pin, two 6+2-pin PCI-e, and two 8-pin CPU cables come with embedded capacitors that reduce voltage ripple, and the included CableMod coupon will set you on your way towards next-level customisation.
A decade of power
We're so confident about the reliability of the ROG Strix Series PSUs that we back them with a 10-year warranty.
NVIDIA Turing™ Architecture
GeForce RTX is powered by NVIDIA Turing, the world's most advanced GPU architecture for gamers and creators. Get truly next-gen performance and features with dedicated AI and ray tracing cores for the ultimate experience.
Get Super Powers
The new GeForce RTX SUPER™ Series has even more cores and higher clocks, bringing you performance that’s up to 25% faster than the original RTX 20 Series and 6X faster than the previous-generation 10 Series GPUs. It’s time to gear up and get super powers.
Capture and share videos, screenshots, and livestreams with friends. Keep your drivers up to date and optimise your game settings. GeForce Experience™ lets you do it all. It’s the essential companion to your GeForce graphics card.
NVIDIA® G-SYNC® gives you more of what you want in a gaming experience. Get smooth, tear-free gameplay at refresh rates up to 240 Hz, plus HDR and more.
Frames Win Games
Fortnite, Apex Legends, and PLAYERUNKNOWN’S BATTLEGROUNDS demand 240 or 144 FPS. Be the last one standing with the unbeatable performance of your GeForce graphics cards.
A new age of creativity is upon us, with the creative apps you depend on moving faster than you ever imagined. NVIDIA GPUs accelerate your work with incredible boosts in performance. Welcome to NVIDIA Studio—and your new, more creative, process.
Broadcast Like a Pro
GeForce RTX™ give you the best of both worlds—a dedicated hardware encoder that unlocks the ability to game and stream simultaneously with superior quality. RTX graphics cards are optimised for your favorite streaming apps, like Open Broadcaster Software (OBS), to give you maximum performance for your live stream.