AU-650x Power side
AU-550 Box+PSU2AU-550x fanAU-550x frontPower FrontPower fan frontFan frontConnectorAU-550 Box+PSU1


The Cyonic AU-550x Power Supply provides you with just the right efficiency and power, and it takes up just the right amount of space in your system build. Certified with 80 PLUS® Gold, the unit stays above 90 % efficiency from 20 % to full load, which, combined with the Cyonic Silence Guard, guarantees low noise under all circumstances. The compact ATX size (140 mm in depth) coupled with the fully modular cable setup allows you the maximum freedom to manage the inside of your build. On top of that, having only the necessary DC cables inside further increases the air flow in the entire system. The 550 watts continuous output sufficiently supplies the needs for a typical gaming system with a little bit of upgrade headroom.


Model nameAU-550x
80 PLUS®Gold
Dimension (mm)W 150 x H 86 x D 140
ModulariyFully Modular
PFCActive PFC (>0.9)
Output power550 W
MTBF@25°C, exl. DC Fan> 100,000 hours
Operation temperature0 to 50 °C
Fan size (mm)120
Fan bearingFluid Dynamic Fan
Warranty5 years
Compatibility4th generation Intel® Core™
ATX12V v2.31
EPS 2.92

Product Description

AU-550x Power Rating
Input Range: 100 V to 240 V
Input current: 8 A to 4 A
Frequency: 50 Hz to 60 Hz
DC InputPower
+3.3 V20 A100 W550 Watts
+5 V20 A
+12 V45 A540 W
-12 V0.3 A3.6 W
+5 VSB2.5 A12.5 W
80 Plus Gold

80 PLUS® Gold Certified

The 80 PLUS® Gold certification guarantees greater than 87%, 90%, and 87% efficiency at 20%, 50% and 100% operating loads, respectively.

Fully Modular Cable

Fully Modular Cable Design

Fully customizable cables not only simplify the installation process but also reduce the clutter inside the computer case. Reduced number of components allow for better ventilation and enhanced cooling.

FDB fan

FDB (Fluid Dynamic Fan Bearing) – 120 mm

It greatly reduces fan noise during operation. As there is less friction inside, the fan will have a longer life.

Gold Coated Connector

Gold Coated Connector Contacts

The connectors do not tarnish over time and increase the efficiency of current transmission.

Compact ATX Size

Compact ATX Size

The power supply is only 140 mm in depth, which makes it an excellent choice for smaller sized cases.

105 °C Japanese Electrolytic Capacitors

105 °C Japanese Electrolytic Capacitors

Premium quality Japanese capacitors with 105 °C rating increase reliability and extend product life.

DC to DC Converter Design

DC to DC Converter Design

Excellent dynamic response and maximized 12 V DC rail output increase system stability.

Silence Guard System

Silence Guard System

It is an innovative design with high quality silent fan, strategically placed heat sinks and the interactive fan control system, which make the power supply run silently and efficiently.







“..The Cyonic AU-550x does very well..”