SeaSonic Platinum Series SS-400FL2 Active PFC F3 400W ATX12V Fanless 80 PLUS Platinum Certified Modular Active PFC Power Supply New 4th Gen CPU Certified Haswell Ready

Pros: Great build quality Great performance Good price 80+ Platinum Completely silent Fully modular What more do you need to know? If you want a silent PSU for a low power work rig or HTPC or heck even a light gaming rig, this is the PSU for you.

Cons: Because you have to mount it one way, if you have a case without two sets of PSU screw holes to allow you to mount your PSU upside down/rightside up, you may wind up in a situation where you cannot mount this PSU properly.

Overall Review: Wanted a fully modular, high quality, silent PSU to power my office rig, and couldn't be happier with this. Using a Fractal Node 304 case, ASRock FM2A85X-ITX mobo and A8-5600k so didn't need much power. I don't have a PSU tester so I cannot comment directly on the electrical quality of the unit, but review sites with the equipment to test properly, like jonnyguru, give this unit top scores.

Pros: Absolutely silent and very cool in operation. This Is a great PSU for a HTPC.

Cons: High price.

Overall Review: I wish SeaSonic would make a fanless 200, 250 and/or 300 watt model for low power HTPC and SFF builds.

Pros: Fan-less. Fully modular. Super efficient.

Cons: SeaSonic ships it in a ridiculously over-designed package. The PSU itself is in a black velvet bag. Why? I'm not carrying it on a plane. It's not jewelry. The power cables are packed in a nice Velcro-fastened plastic bag with two compartments. I can understand this a little better, but still, I'm going to use the cables I need and never refer to the leftovers. I'd prefer a simple cardboard (or soy) box that didn't use petroleum.

Overall Review: Please note that this PSU is designed to face UP only. Because it's fan-less, it relies on fact that hot air rises. Unfortunately, I bought it for a horizontal chassis because I'm building an HTPC. I wrote to SeaSonic's support and asked if I could install it sideways. They said I could and that the "top" should face OUT of the case.

Pros: -Completely silent -Runs very cool -Not overly big -Astounding, consistent, quality power -Fully modular -7 Year Warranty! -Platinum efficiency -Velvet bag

Cons: -Nada

Overall Review: It's the rare perfect product. If you bought this power supply, at probably a premium, then you already know that SeaSonic are known for producing among the best - if not the best - power supplies in the world. Not much else to say. Every independent reviewer is amazed by the quality. I debated adding this as a "Con", but you must be aware of the mounting restrictions imposed by SeaSonic: it must be mounted in only one orientation, effectively "face up". There are a fair number of cases where the fan grill would be pointed downward, and thus these fanless models would not be good candidates.

Pros: This PS, combined with a fanless CPU sink and fanless video card, makes my system absolutely silent sparing an inaudible 180mm case fan and the HDD. Flawless so far. I have it running an i5 750 system with an ASUS P7P55D Deluxe. It replaced an Antec EarthWatts 650 which I thought was quiet...and it was. But quiet and silent are two very different things my friend.

Cons: Only the price...but the silence quickly makes you view it less as an expenditure and more as an investment in your sanity.

Overall Review: If you can afford it, definitely go fo it. A $130 power supply isn't for everyone, and even sounds a little koo-koo at first. But it should be at the top of your birthday or Christmas want list.

Pros: fully modular, no lines are forced on the user by the manufacturer, did not advertise overrated wattage, did not skimp on parts (I was unlucky and was missing one of the minor cables which they promptly replaced for me at no additional cost) Only practical 400w PSU I could find with 5yr warranty on the market at time of purchase.

Cons: The extra 4 pins on the main motherboard connector(20pin +4pin) is near impossible to separate and even once separated the unbound potion of the cable is too short and inflexible for the 4pin to be put out of the way (constantly pushing against a capacitor next to the connection on my mother board). Similarly the extra 4 pins on the cpu connector (4pin +4pin) was not flexible/long enough to be tucked out of the way so as to not touch the motherboard. Location of the power cord interface is not ideal, wrong side on my case unless I flip the psu upsidedown, which the manual specifically says not to do. So I guess this unit was designed for bottom mount case or top mount with open top (btw, I never understood the logic of open top cases, seems like an opening for debris to enter the computer and unnecessary risk from spilled coffee to land on psu and fry the computer, yes, my coworker has accidentally spilled their drink before and it overflowed enough to drip onto both computers)

Overall Review: psu’s interface with modular cables only allows you to connect 3 of the 4 SATA/molex cables (not that you should need all 4). The 2 floppy connections is optional at the expense of one of the 5 molex connection(most people will not need these anyways). No switch between 115v and 230v(most people don’t need it anyway unless you plan on taking your computer through TSA to Europe, the switch usually just adds confusion to inexperienced buyers anyways) The line with the 2 molex connectors and the line with the 2 SATA connectors were barely long enough for the longest connection to reach the closest item in my case so the shorter connection on those lines may be useless in many cases. The other lines had plenty of give to reach their targets. Warm to touch but cooler than other PSUs I’ve encountered DOA PSUs from reputable companies like antec and corsair but none so far from seasonic. Athena lasted 10 years and still working Antec, Thermaltake, Rosewill all still working after

Pros: Good specifications

Cons: I have ordered 6 of these. All worked at the beginning. However, 2 of the 6 failed by about the third or fourth time they were power cycled. We saw a small spark inside the power supply and an electrical smell. The motherboard was not damaged. The failures happened in supplies ordered and installed a month apart in time.

Overall Review: I will not order any more.

Pros: Great PSU, stable voltage and stays cool.

Cons: This PSU is slightly longer than the standard PSUs due to the modular design and connectors. It didn't fit nicely inside LIAN LI PC-Q25A case.