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Power Supply

SeaSonic - 520 W 80+ Bronze Certified Fully-Modular ATX Power Supply

( 4.8 Average / 77 Ratings )




Part #

M12II 520 Bronze




520 W



Efficiency Certification

80+ Bronze


> 87%

PCI-Express 6+2-Pin Connectors


PCI-Express 6-Pin Connectors


Completed Builds Using This Part

See All Completed Builds


Merchant Base Promo Shipping Tax Availability Total
Newegg Business $56.16 +FREE s/h $56.16
Newegg $56.61 +FREE s/h In stock $56.61
SuperBiiz $54.99 +$5.99 s/h $60.98
OutletPC $79.37 +FREE s/h In stock $79.37
Walmart $79.47 +FREE s/h In stock $79.47

Price History (Excluding Tax) History:


why510 13 points 42 months ago
from completed build The Brick (The Hotel Build)

Love the fully modular PSUs. Only problem I have been having is it that it seems that the motherboard cord seems a bit fragile. Had to rearrange a couple cords so it would turn on with the case closed.

gazereths 17 points 40 months ago
from completed build From Budget to Beast (ish)

Solid, fully modular and made by Seasonic. Decent price. No issues at all in the 6+ months I've had it.

xL-Jee- 28 points 31 months ago
from completed build The Little Cube That Could

The only good modular PSU that doesn't cost £75+ It gives good clean power and was recommended by the pros such as JonnyGuru.

tombull89 22 points 30 months ago
from completed build The Orange Box

Excellent value fully modular PSU.

yoorie016 9 points 30 months ago
from completed build Budget Build i3 Skylake

It's the best and well reviewed product! 520w with 80+ bronze that will keep my components well juiced. It has a nice flat styled cables and all of them are black. I think this can also support a single 1080 just in case i upgrade my current GPU.

eagle44445 10 points 27 months ago
from completed build green shitter

its sea sonic, its quiet... dude buy it

devin94x 20 points 27 months ago
from completed build $900 Gaming Budget Build

Fantastic price for a fully-modular PSU. Love SeaSonic.

Xulek 7 points 26 months ago
from completed build Terminal Hyperspace Microwave

I heard they were good, and I guess it hasn't burnt down the house, so that's good. I'd always go fully modular if I ever build another computer. I wish the certification was a little higher. 9/10. (Comes with a sticker 10/10.)

alneal2787 31 points 26 months ago
from completed build Blue Noctua Mini ITX

Seasonic nothing much to see here great power supply very quite and fully modular and brone certified another great ebay find. Old build had a Corsair GS700 so i figured it was a worth upgrade seeing as that PSU is dirt old and wasnt modular.

devin94x 13 points 26 months ago
from completed build Buddy's First Gaming Set Up

My favorite PSU due to price. Cheapest fully modular one I can find. And I havent ever had an issue with SeaSonic.