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Power Supply

SeaSonic - S12II 620 W 80+ Bronze Certified ATX Power Supply

( 4.4 Average / 36 Ratings )




Part #

S12II 620 Bronze




620 W



Efficiency Certification

80+ Bronze


> 87%

PCI-Express 6+2-Pin Connectors


Completed Builds Using This Part

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Merchant Base Promo Shipping Tax Availability Total
Newegg Business $59.99 +FREE s/h $59.99
SuperBiiz $59.99 +FREE s/h $59.99
Newegg $59.99 +$7.99 s/h In stock $67.98

Price History (Excluding Tax) History:


horace528 30 points 40 months ago
from completed build The First of Many

Great and reliable power supply. Wondering how it's taking all of these overclocks extremely well.

-EDIT- Eh, this PSU, while great, has started being a bit of a problem, as they started clicking around 6 months of usage. While is is still extremely reliable, passing the OCCT power supply test for over an hour with overclocked equipment, the clicking sound persists. Bet that not all of the S12II has this problem, but just saying.

BasWillemsen 41 points 34 months ago
from completed build Special Classic

In my country (The Netherlands), this is the cheapest and one of the quietest PSU's that is fully modular. I took 620W for SLI to be optional in the future. The cables are all black, so no nasty colours interfere with my colour scheme. Otherwise, it's a PSU and it does it's job really well.

tomtomj2 22 points 31 months ago
from completed build Imperial Class Star Destroyer

Much better and quieter then my 600B. Seasonic never fails to deliver. All cables are black, except the 24 Pin has the mesh tubing around it and you can see some of the rainbow wires in there.

However nothing it perfect, the only thing I don't like about it is the cables are somewhat stiff.

svefn 4 points 29 months ago
from completed build Lunchbox (first budget build)

It was the only Seasonic model that was available locally at the time that fit the budget. I guess 620W is ok for extra headroom. Non modular but came with velcro straps. Newer models have 2x8pin PCIE for GPU. One gripe is the motherboard power LED does not turn off when shutdown.

lino216 12 points 29 months ago
from completed build lino216's First PC Build

what i have in mind is the seasonic m12ii(fully modular) but the store i went to said they are out of stock. i am also okay with this one since the Psu placement is shrouded in the tecware alpha

lRaiden 7 points 24 months ago
from completed build My first editing and gaming PC!

People recommended me this PSU for my build, I don't have anything to say about it. Should've saved some more money to grab a modular one I guess..

jganz98 3 points 22 months ago
from completed build The Jeezubox

Comes with lots of cable ties for cable management

Nateorious 9 points 21 months ago
from completed build New to the game

Does the job. Quit.

qsold 8 points 20 months ago
from completed build Red is the New Black

I can't complain about SeaSonic. Good PSUs with good warranties.

averagephil 12 points 17 months ago
from completed build My first ever gaming rig

It works. Got nothing in particular to say about it. I had a bit of trouble with the cables but it was to be expected from a non-modular PSU.