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Seasonic M12II-620 Bronze 620W EPS12V 20/24PIN ATX PFC 80+ Modular 6PIN PCI-E 120mm Fan PSU

Seasonic M12II-620 Bronze 620W EPS12V 20/24PIN ATX PFC 80+ Modular 6PIN PCI-E 120mm Fan PSU - 1
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Seasonic M12II-620 Bronze 620W EPS12V 20/24PIN ATX PFC 80+ Modular 6PIN PCI-E 120mm Fan PSU - 52176_l.jpg Customer Photos (0)
Seasonic Electronics
Reg. Price: $89.99  CAD
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   Shipping Weight:   5.8 lbs
   Part #: SS-620GM
 May We Also Suggest

Features    [ Edit | History ]

Sea Sonic Electronics launches the M12II "Bronze" Series, the new and upgraded version of the M12II "Bronze" Series in response to the growing demand and anticipation for more energy-efficient products. The M12II Bronze Series inherits the same output and wattage options as well as the superb quality and ultimate silence from the M12II Series. The M12II, available in 500 watts, offers buyers with a mid range power output solution with cable management, to meet their exact system needs; cable management is now made easier than ever.

The M12II Bronze Series achieves the 80 PLUS Bronze standard of at least 82%, 85% and 82% efficiency under 20%, 50% and 100% operating loads respectively. Combined with Active Power Factor correction (Active PFC), the M12II Bronze reduces energy waste, boosts power efficiency and more importantly, helps the users to save energy and reduce electricity bill.

Quick Specs:
  • IPC
  • Computer
  • Workstation
  • Server
Efficiency 87%
Input Voltage 110 V AC 220 V AC
Output Power 620 W
Limited Warranty 5 Year
Output Voltage 3.3 V DC @ 24 A 5 V DC @ 24 A 12 V DC @ 24 A -12 V DC @ 800 mA 5 V DC @ 2.50 A
Form Factor Internal
Height 3.4"
Width 5.9"
Depth 5.5"
Number of Fans 1
Green Compliant Yes
Green Compliance Certificate/Authority RoHS WEEE 80 Plus Bronze
NVIDIA SLI Supported Yes
Number of +12V Rails 2

Specifications    [ Edit | History ]
General Information  
     Brand Name: Seasonic
     Manufacturer: Sea Sonic Electronics Co., Ltd
     Manufacturer Part Number: SS-620GM
     Manufacturer Website Address:
     Product Model: M12II-620
     Product Name: M12II-620 ATX12V & EPS12V Modular Power Supply
     Product Series: M12II
     Product Type: ATX12V & EPS12V Power Supply
     Receptacles: 1 x 20+4pin ATX Motherboard
1 x 4-pin ATX12V Motherboard
1 x 8-pin EPS12V Motherboard
6 x 4-pin LP4 Peripheral Device
2 x 4-pin SP4 Floppy Drive
9 x Serial ATA
1 x 6-pin PCI-E
1 x 6+2pin PCI-E
  • IPC
  • Computer
  • Workstation
  • Server

     Green Compliance Certificate/Authority: RoHS
80 Plus Bronze
     Green Compliant: Yes
Physical Characteristics  
     Depth: 5.5"
     Form Factor: Internal
     Height: 3.4"
     Width: 5.9"
Power Description  
     Input Voltage: 110 V AC
220 V AC
     Input Voltage Range: 100 V AC to 240 V AC
     Number of +12V Rails: 2
     Output Power: 620 W
     Output Voltage: 3.3 V DC @ 24 A
5 V DC @ 24 A
12 V DC @ 24 A
-12 V DC @ 800 mA
5 V DC @ 2.50 A
Technical Information  
     Efficiency: 87%
     Number of Fans: 1
     NVIDIA SLI Supported: Yes
     Power Factor Correction (PFC): Active
     Protection Type: Over Voltage
Over Power
Short Circuit
     Limited Warranty: 5 Year

Seasonic Electronics SS-620GM Customer Reviews

Product reviews on are screened for relevance and inappropriate content. Reviews may contain inaccurate information about the product. If there is a discrepancy, please use the Flag this Review link located beside each review. Reviews are not an endorsement expressed by, but opinions from customers based on their own experience with a product. We do not recommend you make purchasing decisions based on facts or opinions expressed regarding Seasonic Electronics SS-620GM reviews.
Experience: 1 Years
None really
The quality seems very good. I have heard Seasonic is one of the best psu manufacturers and actually builds them for other brands. It comes with plenty of cables, much more than I need.

Experience: 3 Days
 Verified Owner
Nice design. This is the first Power Supply with seperate/independant cables. You only install the cables that you need.
Maybe the wire bundles could be FLAT. It would make the RIGHT side panel, in my case, easier to close.
Nice design. This is the first Power Supply with seperate/independant cables. You only install the cables that you need. . . . Maybe the wire bundles could be FLAT. It would make the RIGHT side panel, in my case, easier to close.

Experience: 3 Months
 Verified Owner
Nice mid-range power output
Sweet modular cables!
A bit expensive
No real instruction booklet
It was bought for my first build, and I am very satisfied with it. 620 W is a nice mid-range power output, meaning I can add pretty much anything that's not too video-intensive and it should have enough power to keep it going.

Modular cables are sweet, but being new to building my own computer, I had to research a bit to know where to plug each cable.

Chi Yip_L
Experience: 15 Days
 Verified Owner
works, got it comboed with a hydro cooler, modular
the 4/8-pin power cable is a bit short. unable to route through the back of the case
i m very happy with this. initially i installed it upside down, because the instruction book wasnt too clear. But i guess any psu is installed the same way, so it didn't even bother to explain that.

Experience: 10 Days
 Verified Owner
Lots of power and Seasonic has a good reputation for high-end PSUs. Price.
Modular cabling is of little benefit. Some unused cables are not modular. Heatshrink would have made for more pleasant feel and cleaner look of the cables.
I bought the modular version thinking that it would cut down on clutter, but I found the modular cables more trouble than normal cabling as with 2 hdds, 1 cdrom, a PCIe graphics card (2 plugs) and a system fan that requires a 4 pin molex, I used most of the cables anyway. And there are cables that are not modular that are unused.

Experience: 5 Days
 Verified Owner
Quality Built
What is there to say, it's a PSU. The modular cables are really nice. It is my first modular PSU. When you get your hands on it, you can tell immediately that this is a quality component. Much nicer than any PSU I've ever owned. Let's hope this one lasts a while. My only regret is that I payed full price. I wish I could have bought it on sale.

Experience: 2 Weeks
 Verified Owner
Stable power supply. Really quite, no problems with it what so ever
Provides stable power to my PC and is semi-modular which is a nice feature. Fits perfectly in my Cooler Master HAF 912.

Powers my: i5-3570k, GTX 660TI, Z77-D3H.

Experience: 1 Months
 Verified Owner
-Virtually silent
-Solidly built
-Seems to be on back order most of the time
Seasonic is one of those brands I keep hearing about that everyone seems to love and no one has had a bad experience with. I've only owned this power supply for a month now but I have no reason to argue. It does it's job silently, has given me no trouble, and has sleeved modular cables that are easy to work with. You can tell by the weight and feel of the power supply itself that it has a good built quality, and I'm expecting this piece of equipment to last me a long time. Lets hope it does.

Experience: 6 Months
 Verified Owner
Great power supply
Fairly power effecient
I've had this for 6 months running in two machines. Works great. Modular really helps with the cable management. Sufficiently powers both i7 Systems. Was on a budget or otherwise would have got at least a gold level PSU.

Rad S.
Experience: 3 Months
 Verified Owner
- Semi-Modular (24-pin power & 4+4 & 8-pin are attached)
- Type of modular interface between PSU and cable-end connector
- Cables are quite flexible
- 8-pin cable reached 8-pin power socket on motherboard (NOTE: would need an extension if going with a full ATX case and LGA2011 ATX board, as the 8-pin power socket is further forward on the LGA2011 mainboards), when routing thorugh the back of the case
- Well arranged SATA power cables; 3 per cable
- All the power cables/harnesses are a joy to attach
- None, and I hope it will stay that way
Like the previous reviewer said; why go with Corsair when you can go with the company that makes the top-end Corsair PSU's - SeaSonic.
PSU used in:
Case: CM 690 II Basic
Mobo: ASUS M5A99X Evo
Memo: Corsair Vengence 2x4GB 1866
HSnk: CM 212 Evo This review was modfied by poster a 05-20-12 01:08 AM

This review was modfied by poster @ 05-20-12 01:47 AM

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Messages about Seasonic M12II-620 Bronze 620W EPS12V 20/24PIN ATX PFC 80+ Modular 6PIN PCI-E 120mm Fan PSU

Is this enough for a radeon 290/290X? (Sean_L- Nov 14, 13, 1 Replies) Read this message

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Reviews from the Web

Below are reviews found on other web sites for this product submitted by customers.

Comment: The Seasonic M12II-620Bronze is a new midrange power supply from Seasonic that has most all of the characteristics we have come to expect from Seasonic. The unit features a large single overhead fan that is quiet, has good efficiency values, a semi-modular design, and enough power and connectors to
Posted by: Jean-Michel_D @05/30/10
Submit a review link   |   Latest 30 reviews
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