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  • Seasonic M12II 620 BRONZE ; SS-620GM2 80Plus Power Supply
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Seasonic M12II 620 BRONZE ; SS-620GM2 80Plus Power Supply

83 customer reviews
| 20 answered questions

List Price: $89.99
Price: $79.99 & FREE Shipping. Details
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  • 80PLUS Bronze Certified High Efficiency
  • Highly Reliable 105 Degree Celsius Japanese Brand Capacitor
  • Ample +12V Outputs
  • Active Power Factor Correction [99% PF Typical]
  • Double Forward Converter Design
12 new from $45.00
$79.99 & FREE Shipping. Details In Stock. Ships from and sold by Amazon.com. Gift-wrap available.

Frequently Bought Together

Seasonic M12II 620 BRONZE ; SS-620GM2 80Plus Power Supply + WD Blue 1TB Desktop 3.5 Inch SATA 6Gb/s 7200rpm Internal Hard Drive + Cooler Master Hyper 212 EVO - CPU Cooler with 120mm PWM Fan (RR-212E-20PK-R2)
Price for all three: $162.20

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Technical Details

  • Brand Name: Seasonic
  • Model Number: M12II 620 BRONZE; SS-620GM2

Product Description

Seasonic M12II Bronze 620W 80Plus Power Supply

Product Details

  • Product Dimensions: 10.8 x 8 x 4 inches ; 6.2 pounds
  • Shipping Weight: 6.3 pounds (View shipping rates and policies)
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item can be shipped to select countries outside of the U.S. Learn More
  • ASIN: B003HE260I
  • Item model number: M12II 620 BRONZE; SS-620GM2
  • Average Customer Review: 4.5 out of 5 stars  See all reviews (83 customer reviews)
  • Amazon Best Sellers Rank:
  • Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.
  • Date first available at Amazon.com: April 15, 2010

Customer Questions & Answers

Customer Reviews

Most Helpful Customer Reviews

14 of 14 people found the following review helpful By Amazon Customer on January 7, 2012
Verified Purchase
This is an outstanding power supply because of the warranty, build quality, modular features, efficiency, price, and high power output.

There are many things to like about this PSU. The warranty is good for five years! That really speaks to Seasonic's confidence in their own quality control. The power supply is well put together and I really liked having the modular cables (there are plenty of different cables and they are all wrapped in nylon mesh). If you're not sure what modular cables are: they allow you to plug in only the cables that you need for your system so you don't have a bunch of extra, unused cables taking up room in your case. The PSU even comes with a bag to keep the extra cables you won't use. It is worth pointing out however, that the 24 pin motherboard connector and two 8 pin CPU connectors are not modular and it's likely you won't be using the second 8 pin. This power supply is 80 plus bronze certified, which by itself means almost nothing (just like the energy star sticker), but I did a lot of research before purchasing this PSU and tests confirmed that it actually meets the claimed efficiency rating. You can often get this PSU for $80, which is outstanding when you consider that similar PSUs are often priced a lot higher. Finally, this power supply has an output of 48 amps on the 12V rail. This should be good enough for just about any single graphics card system and for a number of SLI systems too (obviously, check the specs on the box for your graphics card).

The only cons I have found with this PSU are that I wish the 8 pin connectors were modular, and I wish that at least one of the 8 pin connectors was longer so that I could route it more out of the way. To be fair, I've never seen a PSU with an 8 pin connector as long as I would have liked.

If you need a power supply with output specs near this one, I highly recommend it. This is the nicest PSU I've ever worked with.
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7 of 7 people found the following review helpful By Randomness on February 7, 2012
Verified Purchase
I have purchased this PSU due to recent hardware upgrade (I needed a little bit more power). The installation process went very easy, there are plenty of cables included for everything I needed (no zip ties, though, but I had plenty already) and so far I am pretty pleased with its performance. It's absolutely quiet, the voltages seem to be rock-stable even with 400+ watt power draw and the efficiency is very good even at the very light loads (my PC with a Radeon 6970 card, an Intel 2600K CPU and a couple of optical drives and HDD's has idle draw of about 80w according to the Kill-a-Watt meter). All in all I am pretty satisfied with my choice and see no reason for looking at other "fancy" namebrands (like Corsair or Thermaltake or similar brands) who don't even manufacture anything by themselves and simply re-label other OEM's products.

B.t.w, even though it is an "Active PFC" power supply, it does NOT require an expensive UPS unit with a "sine wave output" (unlike certain improperly designed models by certain brands), it works perfectly with my cheap APC ES-series UPS (with "stepped approximation to a sine wave" output).
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6 of 6 people found the following review helpful By Lynda Fox on August 15, 2010
Verified Purchase
Thoroughly checked this Seasonic M12II-620 out, all over the web and read all the reviews done on it.
Not bad at all, this and shipping for 89.99. Received it 2 to 3 days earlier and love this unit. Was putting this into an older medium case with a new MB and Pentium 640 with 2 Gb's, with 6 fans, 1 DVD/R-RW, 2 drives, and fan controller. If you use a medium case its tight but easy to plug in, plenty of plugs. Performs like I knew it would.
Amazon was even better then Ebay, Thanks Amazon, always happy with the job you all do, and your prices too !!!
Seasonic 80Plus Power Supply M12II 620 BRONZE
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4 of 4 people found the following review helpful By Robear226 on February 1, 2013
Easy installation, sleek bag, came with an abundance of cables, worked with no problems at all, the only downside is the painfully short cables. They ever so barely connected to everything, but leave the inside of your case a mess.
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3 of 3 people found the following review helpful By NotTooPicky on July 27, 2011
Verified Purchase
I built a PC for someone else using the X650 Gold (a money not an issue build), and I'd never used a PSU so wonderfully engineered. It was a joy to setup. After playing with it, I got a little morose when looking at a new PSU for my personal desktop. With the M12II 620, I felt like a didn't overpay, and still got a lot of the joy from using a well-engineered product.
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3 of 4 people found the following review helpful By D. Smith on March 21, 2012
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Most Recent Customer Reviews

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Seasonic M12II 620 BRONZE ; SS-620GM2 80Plus Power Supply
This item: Seasonic M12II 620 BRONZE ; SS-620GM2 80Plus Power Supply
Price: $79.99
Ships from and sold by Amazon.com

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