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ASUS ROG-STRIX-550G power supply unit 550 W 20+4 pin ATX ATX Black

In stock 35 Available
Mfr. #
£ 117.13 £ 97.61
ROG Strix 550W, 100-240V AC, 80Plus Gold, ATX 12V, 160x150x86 mm


Frozen Silence 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. COOLING ROG Heatsinks 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. 0dB Technology Quiet intelligence 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. ENGINEERING 80 Plus Gold Certification Heart of gold Top-end Japanese capacitors ensure efficient operation and have helped the Strix earn an 80 PLUS Gold certification. The increased efficiency also results in less heat, reducing noise and increasing reliability. EXPERIENCE Cosmetic Customization 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 Plug in 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 customization.


SKU 90YE00A2-B0NA00
EAN 4718017535243
Number of fans1 fan(s)
Fan locationTop
Cooling typeActive
80 PLUS certification80 PLUS Gold
Product colourBlack
Number of fans1 fan(s)
Fan locationTop
Cooling typeActive
Total power550 W
AC input voltage100 - 240 V
Max output current (+3.3V)20 A
Max output current (+12V)45 A
Max output current (+5V)20 A
Max output current (-12V)0.3 A
Max output current (+5Vsb)3 A
Power protection featuresOver current, Over power, Over voltage, Overheating, Short circuit
Ports & interfaces
Motherboard power cable length61 cm
SATA power cable length810,860 mm
Peripheral (Molex) power cable length450 mm
PCI Express power cable length67.5 cm
CPU power cable length100 cm
Motherboard power connector20+4 pin ATX
Number of SATA power connectors8
Peripheral (Molex) power connectors (4-pin)3
PCI Express power connectors (6+2 pin)2
CPU power connector (4+4 pin)Yes
PCI Express connectorYes
ATX power connector (20+4 pin)Yes
Cabling typeModular
Power supply unit (PSU) form factorATX
80 PLUS certification80 PLUS Gold
Weight & dimensions
Width160 mm
Depth150 mm
Height86 mm
Weight1.73 kg
Packaging data
Cables includedAC
Package typeBox
Package weight3.12 kg
Technical details
Sustainability certificatesRoHS
80 PLUS certification80 PLUS Gold
Packaging content
Cables includedAC
Manufacturer ASUS
Short Description ROG Strix 550W, 100-240V AC, 80Plus Gold, ATX 12V, 160x150x86 mm
Meta Description ROG Strix 550W, 100-240V AC, 80Plus Gold, ATX 12V, 160x150x86 mm