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Power Supply

Cooler Master - 550 W 80+ Bronze Certified Semi-Modular ATX Power Supply

( 4.2 Average / 14 Ratings )



Cooler Master



Part #





550 W



Efficiency Certification

80+ Bronze

PCI-Express 6+2-Pin Connectors


Completed Builds Using This Part

See All Completed Builds


Prices for this part are not available.

Price History (Excluding Tax) History:


BULLSEYE 4 points 46 months ago
from completed build Effective Upgrade

So far so good, very queit and keeps the build fed with power.

Puncake 23 points 43 months ago
from completed build Hyperion Fury

Cooler Master G550M : Overall good power supply.Fan is silent and does not have any problem so far.

Aj.Shawon 9 points 41 months ago
from completed build Skylake-Maxwell 6th-Gen Gaming PC

Your pc protector

STVRaptor 6 points 41 months ago
from completed build First Build: Dragon's Breath 745

No problems, hasn't exploded. Semi modular seems to be a good medium between fully modular and not. I would buy again.

Reynaert98 6 points 40 months ago
from completed build First Budget Build

Using the 450W variant. Does its job fine and looks solid.

northbaysteve 27 points 36 months ago
from completed build Nano Nine-Sixty

This was the cheapest power supply (I paid £44.89) that met my criteria of 140mm deep, modular (semi modular at least) and reasonably quiet. It looks good and works well. The main cables are a bit bulky and stiff, but all the connectors fitted easily

lana.eve 4 points 34 months ago

Great power supply, fairly quiet as well. Does the job well.

noblemes 25 points 24 months ago
from completed build Light gaming ITX build

This power supply is great, after reading the techpowerup review (especially the bang for buck and noise rating sections), I was sold. But still, at some point it was the loudest part in my PC, so eventually I've replaced it's fan.

whatinthesam 6 points 21 months ago
from completed build First PC v1.0


Make sure to fully plug in the extra cables (sata, molex, etc.) or it won't power up at all.

whatinthesam 6 points 19 months ago
from completed build First PC v1.1

Provides power. Have had one issue with the whole machine not starting when a cable was not fully plugged into this PSU but it was an easy enough fix (though hard to find).