December 12, 2006
Toxico-PC : M12-500W
The configuration used for the tests is practically of most demanding even by on which one could hope of a source of 500w, nevertheless this behaved perfectly with a remarkable stability and a variation in its lines really very small. Seasonic demonstrated to us that it is a mark to trust totally for that reason we granted our product recommended to this model.

December 5, 2006
Mad Shrimps: M12-600W
It may well worth every penny if you are going for high end graphic card, SLI setup, 3 to 5 HDDS, plus overclocking. The rock solid voltage lines, high efficiency and low noise Smart Fan control; modular and sleeved cables on top of Seasonic's established product reliability

November 17, 2006
Chilehardware : M12-500W
Si tienes presupuesto y quieres una fuente para overclockear al extremo sin preocuparte de voltajes, ve por la Seasonic

November 3, 2006
Phoronix : M12-700W
The voltages were dead on to their theoretical values, and the fluctuation was minimal between idle and load. Ideally we would have liked to see the +5.00V rail slightly elevated, but the +12V lines were great. The noise level was also minimal for this environment. From what we have seen with the Seasonic M12 700W, we were delighted by its performance and features.

November 1, 2006
MODTHEBOX: S12 Energy Plus 650W
This S12 Energy Plus in terms of power is more than adequate for most upper end systems, and with it’s 80 plus certification it does it more efficiently. With quad 12v rails, SLI ready, 3 year warranty, and 650w of available power this unit is a worthy piece of hardware upgrade.

October 19, 2006
DragonSteelModst: S12 Energy Plus 550W
The Seasonic S12 is just an awesome power supply. It is very stable under heavy loads, very quiet and with the 80Plus certification makes it an outstanding choice for anyone looking for a new power supply to trust their system.

October 14 , 2006
Virtual Hideout : M12-700W
With all that being said, Gamers, Overclockers, and the ever challenged quiet PC'ers out there will love the M12-700W. Rock solid performance and as you can see with the voltage results very little fluctuation under load.

October 12, 2006
PCSTATS: M12-700W
It is probably one of the best modular power supplies on the market. Based on our past experiences with Seasonic power supplies, we know it deliver the goods efficiently - a modular design simply sweetens things.

October 11, 2006
SPCR : M12-700W
The M12 sports the best modular design that we've seen, and its powered by the high quality electronics that Seasonic is known for. There's no question that the M12 is a high end product, with a price tag to match. It is targeted very specifically at gamers and overclockers that consider modular cables a mandatory feature.

October 11, 2006
Jonnyguru: M12-700W
The Seasonic M-12 performed with excellent voltage regulation, potentially minimal thermal de-rate, excellent efficiency and has active power factor correction. The modular connectors will keep things looking clean inside your case while the slow turning fans will keep things quiet, if not a little bit on the warm side.

October 5, 2006
SPCR : S12 Energy Plus 650W
For a high end, blazing performance, dual-graphics, overclocked monster of a system, we know of no quieter power supply than the Energy Plus. Acoustically, the Energy Plus has surpassed our expectations of what is possible from a quiet power supply and set a new standard.

October 4, 2006
3dgameman: M12-700W
The Seasonic M12 Modular 700W Power Supply performs very well, has a quiet 120mm fan, and another fan if it's required. This is a modular power supply. However, the main motherboard 20/24, 8pin, and 4pin leads are hardwired into the power supply and are not modular. Modular power supplies give you the freedom of selecting only the leads you require, therefore freeing up a lot of cable mess inside the case, thus increasing airflow.

October 1, 2006
Treadlayers: Power Angel
It has become an indispensable part of our lab, and should be standard in any hobbyist's test bench. We now know which parts are power sippers, and which ones are power hogs.

September 25, 2006
AMDZone: M12-600W
I'm impressed by Seasonic's quality and strive to make the best power supplies in the world. Whether you are building a gaming machine or a hom networkcomputer, Seasonic should be at the top of your list.

August 23, 2006
APH Networks: Power Angel
Overall, the Seasonic PowerAngel is very easy to use, capable of quickly and accurately checking power usage. The LCD screen displays multiple pieces of information in relation to power usage of the equipment(s) plugged in.

August 9, 2006
PCSTATS: S12 Energy Plus 650W
Seasonic has swept through the enthusiast community for good reasons. Its long history of manufacturing coupled with energy efficient designs is a winning combination. The flagship Seasonic S12 Energy Plus SS-650HT 650W has the high standard of '80 PLUS' to live up to, and as you saw, it had no problems doing so.

July 27, 2006
Hardware Logic: M12 500W
Whenever a company ventures into new territory, there's always a question of whether they'll get it right or go through some initial growing pains. While power supplies are certainly nothing new for Seasonic, up to this point they have not offered a modular solution. Adding to the pressure are the expectations created by the stellar S12 series. Well, Seasonic's first foray into the modular PSU market can be described as nothing less than a resounding success. Trying to get the rails to budge is like trying to move a mountain, only a mountain is likely to make more noise than our test unit did. Recommending the M12-500 is a no brainer. Stable, quiet, and packed with features, the new M12 series from Seasonic sets a new bar for modular power supplies.

July 14, 2006
Hardware Logic: S12 330W
The S12-330W is honestly one of the quietest (if not the quietest) PSU I have ever used. In addition to being whisper quiet, I never noticed any part of it overheat or even get hot.

June 28, 2006
Virtual-Hideout: S12 500W
New energy standards require power supplies to perform with certain efficiencies. Seasonic S12 500W falls within this category by offering power supplies with 80% efficiency. Now keep in mind this 80% hold true when the power supply is delivering a certain amount of wattage. Below that wattage, some power supplies are not so efficient. The Seasonic SS-500HT stays really close to its described rating, which is what we all hope for.

May 18, 2006
Silent PC Review: S12 330W
The newest version of the S12 brings some much requested features to the table, mostly to do with cable selection and management. Those who were requesting the features will no doubt be thrilled...

May 16, 2006
PCSTATS: S12 600W
The new flagship Seasonic S12 600 has a high standard to live up to but as you saw it had no problems. While reading the specs listed on the Seasonic power supply might not seem as impressive as other models available, please keep in mind that they are sustained which means the Seasonic S12 600 can deliver a true 600W of power while under load and not just during peak times. The performance of the Seasonic S12 600 was excellent as expected from a Seasonic power supply.

May 16, 2006
Biohazard Technology: S12 500W
After testing and using the power supply in my rig, I have found that I am getting better overclocks, and a higher max ceiling for them. It is also dead silent, and the matte black finish looks awesome. Seasonic really came out with a winner here. The inclusion of dual PCI-E power connectors is a really smart idea, and the sheer number of connectors makes this a power supply not to be trifled with. It comes sleeved and I know that many a modding enthusiast will appreciate that.

May 4, 2006
AMDZone: S12 600W
The Seasonic S12 series power supplies are simplistically elegant. There is nothing on the power supply that does not add functionality. No flashing LEDs, no unnecessary switches, nor glow when powered on. It has just one big 120 mm fan. Depending on temperatures, the fans adjust to minimize noise or maximize fan longevity. Larger fans have the advantage , they can spin slower and therefore quieter , while still pushing the same volume of air , as a smaller fan. I currently lack a decibel meter, but by doing my unscientific "how close do I have to get to hear it test" , I literally had to get my ear within 2 inches of the power supply to the the system. Unless you go fanless, you'll be hard pressed to find a quieter power supply.

April 18, 2006
ByteSizedReviews: S12 600W
In terms of performance, the S12 finds Seasonic at the very top of their game, with rock solid rails across the board. Even during the ten-drive I/O meter test, the Seasonic did not notably dip in voltage strength, and the system remained 100% stable throughout testing of this PSU. Something that might be of interest to many users is that the Seasonic is over 80% efficient at converting AC to DC, as proved by its certification by the 80 plus program (www.80plus.org). For those interested, the S12 is also fully certified by nVIDIA for SLI operation.
Overall, the Seasonic belies its small footprint by providing unrivalled performance in rail strength, efficiency and quietness. Its 120mm fan is considerably quieter than others on test and it has all the compatibility you would expect.

April 10, 2006
Bjorn3d: Power Angel
Well not being one to turn down a review, well not often anyway, I decided to go ahead and check the product out. Much to my surprise I found out that it had a number of other "real world" uses besides just being a component of the power supply review kit. So today we're going to give you the scoop on what those uses are and how directly or indirectly this tool may help you not only in checking out your computer system's power needs but also almost any electrical device you have.

March 29, 2006
OcmodShop: S12 430W
Sea Sonic ships everything you would need for an easy installation of their power supply. Included in the box is the user manual, mounting screws, case badge, power cord, Dr. Cable cable management kit, external fan control output cable, and of course the power supply with pre twisted wires, patented easy swap connectors, and a 120mm cyclone cooling fan. The power supply is a nice flat black color which I really like.

March 11, 2006
Hardware Logic: SVP 250
Seasonic has built up a reputation of being one of the top dogs in the PSU manufacturing market. Today, we get to take a closer look at the Seasonic SS-250SVP 250w power supply unit with active PFC. If you are looking for a good microATX sized power supply, this review is for you!

February 28, 2006
Den Guru: S12 330W
The S12 in this well-respected Seasonic brand name stands for "Silent 12 cm Fan Series," which introduces the big, quiet slow fans that the company uses to keep their supplies whisper quiet.

February 14, 2006
Mad Shrimps: Super Versatile 250W
Most older OEM built computers, such as Compaq and Dell were using smaller PSU's. Now, a couple of years later, the PSU's are completely dusted and became unreliable. This is the perfect PSU for the needed upgrade. On the other hand, if you intend to build a low power system, such as a Sempron based system and you are aiming towards silence, this one will catch you attention.

January 11, 2006
Gadget Life: S12 380W
The S12 380HB showed very little voltage fluctuation on the test system during all testing, which was really impressive for a 380w PSU with this test system. The S12 380HB is a great PSU for an entry-level to mid-range modern system (PCI-E), keeping in mind limited devices and limited cable lengths.