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Power Supply

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

(95 Ratings, 4.8 Average)

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Specifications

Manufacturer

SeaSonic

Part #

M12II 520 Bronze

Manufacturer

SeaSonic

Form Factor

ATX

Efficiency Rating

80+ Bronze

Wattage

520 W

Length

160 mm

Modular

Full

Type

ATX12V / EPS12V

Fanless

No

EPS Connectors

2

PCIe 6+2-Pin Connectors

1

PCIe 6-Pin Connectors

1

SATA Connectors

6

Molex 4-Pin Connectors

6

Efficiency

> 87%

Price History

    Reviews

    chunho
    • 90 points
    • 25 months ago

    I love this psu, its fuly modular and it got all black cables. Also not that expensive

    JCMsergox
    • 82 points
    • 26 months ago

    Quiet, fully modular, and always on Rebate for some reason. I could have easily done with a 430W but this was on sale for a good price. great buy!

    X_Smoke_Stacks_X
    • 73 points
    • 6 months ago

    from completed build THE WHITE KRAKEN

    It's seasonic. works great. What else can I say

    tbhpcbuilder
    • 41 points
    • 42 months ago

    Had it laying around and I actually have the 620W version of the M12II in this build. It cost me 64.99 three months ago. Still working strong today and it’s modular with black cables.

    Bocazon
    • 38 points
    • 28 months ago

    from completed build Two builds for last minute gifts

    At the time of purchase, it had a rebate going that brought its price down enough that it was a good deal for a fully modular 520w with a decent enough reputation to trust in a $500 build.

    alneal2787
    • 32 points
    • 43 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.

    xL-Jee-
    • 29 points
    • 48 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.

    AMDMakesaDifference
    • 28 points
    • 8 months ago

    Got this for $40. Good power supply, its just the stock cables. I bought extensions since my build focused on both performance & aesthetics.

    tickleusknee
    • 27 points
    • 31 months ago

    from completed build Q-BIT

    1) It's SeaSonic. 2) JohnnyGURU gave its bigger brother (same M12 II EVO range) a score of 9.4. 'Nuf said.

    bcbrowne
    • 26 points
    • 3 months ago

    from completed build Old Guy's First Build

    My only complaint is the odd "6+2" pin power connector for the graphic card... the way you need to loop around the "+2" part doesn't look great. Other than that, no issues. The price was good for a modular PSU.

    Though 520 Watts is perfectly fine for the current build, if I were doing this again I'd go up to 650+ to leave more headroom for the future.

    Builds Using This Part

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