SeaSonic M12D SS-750 750W Power Supply

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So far I have had no problems with this power supply. It is extremely stable, very quiet and the voltages are very close to spec.I swapped out my old 500W with this one, with no problems.I really like this power supply... especially since it went on sale for 99$.

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I received a unit with a lower serial number. As stated by many, these psus tend to make a high pitch noise/whine, mine did too. However, the customer service at Seasonic will crosship me a higher serial one. For 99$ you cannot beat that quality/price.

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I own this PSU since 4 months and this is the best PSU i had so far. If you want something that will last, that's a very good choice. The quality if this PSU is awesome and you can tell it by the weight of this unit. :)

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I got it on sale for $149. Working fine with i5 750, Gigabyte P55A-UD4P, 4gb ram, 2x sata hdd, blu-ray dvd combo & Radeon 5850. Super quiet. Well packaged.Although not fully modular, being able to leave out/remove some unneeded cables is a definate plus for saving spaceInstalled in the Antec 300 mini tower case which is bottom mount & the 12v cable that plugs into the top corner of the mainboard barely reached. Had to stretch it across the vid card & right infront of my cpu cooler fan. Theres no way it'd reach in a taller case. Wouldnt be an issue for top mount case.Would recommend when its on sale for $149

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Bought this PSU to replace a non-modular PC&Power 750 Silencer. This PSU blows the PC&Power away in all categories. This is a great PSU that I would recommend to anyone. You can feel the quality in the weight of the unit. The finish on the casing is rough but really nice. This is one of the most efficient models on the market and should last most people a very long time. The packaging is really nice as it comes with a bag for the extra cables. The cables that are non modular are:24-Pin8-Pin EPS2x6/8 Pin PCI-E1x4 Pin1xSata (3 in total)The rest of the cables are completely modular, which makes cable management much easier.

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Got this power supply for my i5 system, and it is completely quiet and works great. Bought it on boxing week for about $130, worth every penny.

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Will order more if I need. You really feel it,s a strong build. Can,t wait to see them in special to order an other one This review was modfied by poster @ 01-21-10 06:10 AM

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overall this power supply is a beast! i switch my antec neopower and it broked down on me....but i got the seasonic for 100+ on sale on boxing day so why not? modular power supply especially! and it was way worth it!

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got it for under #100 on boxing sales. Fits perfectly in my case. So far handles my overclocked quad core with no problem at all. Modular design is great. Lots of cables & connectors included, each of them wrapped with mesh. It is so expensive if not on sales so thankz NCIX.

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Got this extraordinary PSU because of the manufacturer reputation. Seasonic not only do ther own power supply, but they make Antec, Corsair and other Premium Brands. In dfact only Enermax is independant in PSU making. Would recommand to any computer DIY enthusiast. Cables are complety sleeved contrary to Enermax.

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Very happy so far, I'd say I'll buy Seasonic on sale again, orginial prices I can't afford.PS: salesperson in Broadway store, thank you!

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This PSU is not compatible with Asus' P55 motherboards: I learned this the hard way by having to build a friend's rig twice before we got it figured out. But I did find this power supply easy enough to work with and it did have a lot of extra cables to use and a nice carrying bag for them. Good to work with, just a shame it didn't work for me.However, to call this modular is a bit of an exaggeration: its half modular at best. Except for four pin molex cables for fans, the PSU had everything I needed to run a relatively basic system all attached.It would never power up the system due to the incompatibility issue (the guys at NCIX said they only see this sort of thing happen a couple times a year and I guess I was one of the "lucky ones" this year lol), but I wanted to make this both a warning to other potential buyers, but also a give an honest review of what I experienced. The experience has kind of left me feeling a little sour towards this PSU, but then it was my own fault for not going with something from Asus' recommended PSU list. A big thanks to all the guys at NCIX in Langley who helped me out with this: you guys were really understading and a great help through this frustrating experience.

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Purhcased this shortly after getting the 850W version - especially at the Extreme Deal price. Like the 850W, it's partially modular with permanent cables for PCI-E x2, SATA, EPS power and ATX power. Also the fan doesn't spin when there is not enough draw on the power supply (less than 250W according to the power meter) - runs that cool. Even on system load (peak I've hit is approx 400W) - the fan is silent. Definitely happy with Seasonic builds.

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I always take time to find out how a product perform before reviewing it.It's amazing how quiet this power supply when on idle. Most of the time the fan doesn'nt spin. I tought it was faulty, until i read one review.So far i have put a lot stress on it, to see how it would take it. I have i7 rig, with crossfire(2 HD4870), 3 hard drives, 2 optical drives, overclocked, etc...The M12D seem to take everything, whithout problem.Simply the best! Amazing for a 750 Watt!

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very nice psu for the sale price. I dun think I'll be needing a new psu for a long time. This psu will probably be in all my builds for the next 5 years.

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Awesome PSU for sure. Got it for a great price on sale. Solid PSU, I will be able to upgrade lot's of part before I need more juice! Works like a charm.

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Got this on extreme deal for $150 - $50 MIR =$100. It was definitely a great deal. There's definitely enough current on the 12V rails for any future upgrades i plan to get (DX11 cards). Comes with plenty of modular cables and even a bag for the extra ones.