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SeaSonic USA > 
Item#: N82E16817151031

SeaSonic M12 SS-700HM 700W ATX12V V2.3 / EPS12V V2.91 SLI Certified CrossFire Ready 80 PLUS Certified Modular Active PFC Power Supply

  • ATX12V V2.3 / EPS12V V2.91
  • Modular
  • 80 PLUS Certified
  • 100 - 240 V 50/60 Hz
  • +3.3V@24A,+5V@30A,+12V1@18A,+12V2@18A,+12V3@18A,+12V4@18A,-12V@0.8A,+5VSB@3.0A
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Representing the latest in modularity, efficiency, stability, silence and green innovation, the SeaSonic M12 SS-700HM redefines "high-end modular PSU". Packed with impressive features, this 700 Watt power supply is ideal for your high end gaming system needs. Dual Magnetic Amplifiers (Mag-Amp) improve cross regulation tolerance on +12V lines and increase system stability. The double forward converter design of the SS-700HM enables it to operate with very high levels of efficiency. Multiple +12V outputs offer enhanced +12 V current capability and offers a wide range of uses.

Aluminum electrolytic capacitors boost lifetime and reliability. The M12 SS-700HM cranks at 85% efficiency, and active PFC minimizes line loss and reduces power distortion. The modular cables are detachable, letting you use only what you need, avoiding unnecessary clutter and maximizing airflow. The M12 SS-700HM hasm a unique all-in-one cabling design, and supports PC, IPC, workstation, server, & dual-CPU systems.

It also supports all multiple PCI-E video card technologies. Dual super quiet ball bearing fans (1 x 120 mm + 1 x 60 mm) reduce hot spots and offer excellent heat dissipation at very low noise levels.

  • newegg ATX12V and EPS12V Compatible Compatible with the ATX12V and EPS12V standards, the SeaSonic M12 SS-700HM provides maximum power stability to drive the latest Intel and AMD processors as well as other components for desktop and entry-level server computer systems.
  • newegg 700W Maximum Power A maximum power of 700W delivers safe, reliable output for ultra high-end computer systems.
  • newegg Highly Efficient Providing up to 85% power efficiency, the SeaSonic M12 SS-700HM saves energy and may even reduce your electric bill!
  • newegg Modular Cable Design The modular cable design allows use of only the cables you need resulting in improved internal airflow and reduced system clutter.
  • newegg NVIDIA SLI Certified The SeaSonic M12 SS-700HM power supply has gone through a series of rigorous NVIDIA SLI certification tests for maximum system stability when building NVIDIA SLI PCs.

Learn more about the SeaSonic USA SS-700HM




ATX12V V2.3 / EPS12V V2.91
Maximum Power
12cm & 6cm Double ball bearing fan
Main Connector
+12V Rails
PCI-Express Connector
4 x 6-Pin, 1 x 6+2-Pin
SATA Power Connector
SLI Certified
CrossFire Ready
up to 85%
80 PLUS Certified
Input Voltage
100 - 240 V
Input Frequency Range
50/60 Hz
Input Current
100,000 hours at 25°C under full load


1 x Main connector (20+4Pin)
1 x 12V(P4)
1 x 12V(8Pin)
10 x peripheral
8 x SATA
2 x Floppy
4 x PCI-E
Dual Magnetic Amplifiers [MagAmp]
Double Forward Converter Design
High Reliable Aluminum Electrolytic Capacitors
Smart and Silent Fan Control [S2FC]
Soft-Mounting Rubber Cushions
Ultra Ventilation [Honey Comb Structure]
All in One DC Cabling Design
Easy Swap Connector

Manufacturer Warranty

5 years limited
5 years limited

Quick Info


  • Limited Warranty period (parts): 5 years
  • Limited Warranty period (labor): 5 years

Customer Reviews of the SeaSonic USA SS-700HM

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  • Tony A.
  • 2/10/2014 3:10:54 PM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsAlmost 6 years!

Pros: Purchased this PS at the same time as CyberPower CP1500AVRLCD 1500VA 900W UPS. New history dictates this may be bad as the PS is Active PFC.

Cons: CyberPower CP1500AVRLCD 1500VA 900W UPS may cause problems with this power supply. Mine just died last week.

Other Thoughts: CyberPower is supposed to have a page noting power supplies that will fail, have yet to find.

Did you find this review helpful? Yes No

  • Matt A.
  • 1/24/2011 7:49:31 AM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month

5 out of 5 eggsGreat, quiet PSU

Pros: - 700W, 80+
- Well-built modular design, high-quality housing
- TONS of extra connectors, molex, sata, 4-pin etc. that you can attach as needed
- Newer molex connectors which are just squeezed to connect/disconnect rather than having to pry on/off
- 6-pin or 2X4-pin CPU power
- Two fans, smaller one only turns on when required
- Fans aren't audible at all over my other case fans which are whisper quiet
- Mobo power connectors are longer than most which is great for routing through cable management.

Cons: It is not made of bacon.

Other Thoughts: I bought this PSU from a friend of mine who used it for a couple of years with no issues whatsoever, and I expect to have no problems with it.

0 out of 1 people found this review helpful. Did you? Yes No

  • David K.
  • 9/12/2009 8:45:42 PM
  • Tech Level: Average
  • Ownership: less than 1 day
  • Verified Owner

1 out of 5 eggsquit working

Pros: quiet
well constructed cables

Cons: only worked for a few minutes and then the 12v rails gave it up had to RMA
Have to mount it upside down in a case like the Antec 1200 or 900 (not a big deal)

Other Thoughts: Have to give this a low rating but it sure is a nice PS

1 out of 2 people found this review helpful. Did you? Yes No

  • David S.
  • 7/20/2009 6:17:27 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggs

Pros: Quiet, rock solid, modular.

Cons: Somewhat stiff cables.

Other Thoughts: This PSU went into my Antec P182 case as a long-term investment. I'm planning on it lasting me through at least 1-2 builds, and so far, I can say that it's doing so. It is dead silent, and I've never had a problem related to power with the system. The cables were long enough to reach all the connections I needed them to - even when routed through the significantly longer cable-management systems of the Antec case. The modular system is nice because it means I don't have extra cables clogging up the inside of the case. The cables WERE a little on the stiff side, but the overall quality of the PSU more than makes up for the minor inconvenience of the stiff cabling.

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  • William P.
  • 7/17/2009 7:17:56 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsI love Seasonic

Pros: This is a quite PSU. I have owned dozens of SeaSonic PSU's and have never really had a noisy one. This one has nice sleaved cables. Almost all of the cables have good length. all the cable lengths were good and It installed nice into my P-180 with the exception of one.

Cons: The 8 pin CPU Cable is to short. the 4 pin is long enough though. you would think they would make these the same length.

Other Thoughts: I have a P-180 case, Asus P6T deluxe v2, With a a Zalman led9900. The 8 pin power cable was short and would not reach although the 4 pin would. I found this to be ridiculous. the cable extension cost me around 8 bucks. thought that was to high priced. but all in all great power supply.

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  • Philip G.
  • 7/5/2009 10:20:57 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsSmooth Power

Pros: Quiet, rock stable, cool running under any load, essentially no vdroop on any rail.

Cons: Molex connectors could be a tad better.

Other Thoughts: This does what a PSU is supposed to without any second thoughts. Don't let the price put you off.

Did you find this review helpful? Yes No

  • Marc I.
  • 7/4/2009 5:43:19 AM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsQuiet, Easy, Nice

Pros: 700W and 80+, dependable name, modular, tons of plugs.

Cons: Somewhat stiff and you'll likely have one extra 12-pin plug since it has a 24, 4, and 12 not modular.

Other Thoughts: Quiet is an understatement. You won't know it's on.

AMD 550, Stock cooler
This PSU
Gigabyte GA-MA780G-UD3H
Radeon 4550
Hauppauge 2250
Elgato Hybrid
Win 7 Ultimate X64

Did you find this review helpful? Yes No

  • James G.
  • 5/26/2009 2:50:00 PM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsGood as always

Pros: It's got the power I need, it's quiet, and it's a good brand. Runs a 955BE and ATI 4890 with no problems.

Cons: None

Other Thoughts: I've been a Seasonic guy ever since I had two Antec's melt on me. I haven't been let down yet.

Did you find this review helpful? Yes No

  • Michael K.
  • 5/23/2009 2:19:36 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggs

Pros: I got it to replace an older PSU whose fan was starting to drone loudly. This one is nice and quiet. Runs cool. Very high quality internals... this is one of the best you can buy.

Cons: None whatsoever.

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  • Mike M.
  • 5/15/2009 6:24:44 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsGreat Power Supply

Pros: Quiet, plenty of modular cables. Easy to build with.

Cons: None

Other Thoughts: Does just what you expect a high end power supply to do....Work!

Did you find this review helpful? Yes No

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Item#: N82E16817151031
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