SeaSonic Platinum-1200(SS-1200XP3) 1200W ATX12V / EPS12V 80 PLUS PLATINUM Certified SLI Ready CrossFire Ready Full Modular Power Supply Intel 4th Gen CPU Compatible 7yr Warranty

Pros: - Excellent performance and efficiency (92% @ 50% power load @ 50C) - Compact size for a 1200W power supply unit - Hybrid fan function allows for silent operation when using 300W or less - A lot of cabling options for even the most extreme computer builds - Seasonic's 7 year warranty!

Cons: - Fan operation can be a bit louder as it spins up to keep the power supply cool when at 70% or higher load (~840W) - Pricing varies from e-tailer to e-tailer...make sure to get it on sale! Don't pay full retail for it if you can wait. - No monitoring software available like Corsair's Command Link :(

Overall Review: The Seasonic SS-1200XP3 is an oustanding power supply. DO NOT LISTEN TO THOSE NON-TECH SAVVY BUYERS WHO POSTED BAD REVIEWS ABOUT THIS POWER SUPPLY! Johnny Guru gave it a 9.8 out of 10! There is nothing more to be said. This power supply delivers as promised! The unit came well packaged and included all the necessary cabling or accessories. Also included is a nice velcrow bag to keep all the extra cabling that you may not use after building your system. I am currently using the Seasonic SS-1200XP3 to power my main gaming rig: Intel Core i7 3930K @ 4.5Ghz @ 1.35V Asus Rampage Extreme IV motherboard 32GB 1600Mhz Crucial Ballistix Tracer DDR3 (8 x 4GB) 3 x Gigabyte GTX780 GHz Edition cards in 3-way SLI 2 x Corsair Neutron GTX 480GB SSDs in RAID 0 2 x Hitachi 3TB HDDs (storage) 2 x LG Blu ray burner optic drivers Asus Xonar D2X sound card 5 x 120mm Corsair SP120 fans 1 x 140mm Corsair SP 120 fan Custom liquid cooling (Swiftech MCP655 water pump) The recommended power supply for my setup according to the eXtreme power supply calculator is ~1200W. The Seasonic SS-1200XP3 does NOT disappoint and performs perfectly without one hickup or instability issues whatsoever. I'm gaming at high overclocks on both my CPU and three GPUs (116% overclock) at 4K resolutions in Crysis 3 and BF4. Everything runs rock stable for hours on end. For this price point, the Seasonic SS-1200XP3 is the perfect choice to power your gaming rig that can't be beat!

Pros: Silent fan, and runs 2 980's like a champ. I've never noticed the fan come on in Hybrid mode, even while gaming. Granted, I don't really check out my PSU fan that often.

Cons: Outside of the first one being DOA, none that I can think of.

Overall Review: First one was DOA. The RMA process was pretty straight forward, and only took a while because I dragged my feet. It arrived in their facility on a Thursday and I had a new unit shipped out by Friday.

Pros: Incredible detail to workmanship, packaging, included accessory stuff

Cons: None.

Overall Review: I run and electronics manufacturing company that produces specialized comms gear. Bought this for my son for a Christmas present. I'm so impressed, I think I'll be buying Seasonic supplies from now on for everything I build.

Pros: Very efficient. Hybrid mode. Packaging, extras and looks. More than enough power for now and allows me to add whatever I feel like to the system. I did get it for a really good price with the mail in rebate.

Cons: Barely fit inside my Define R5 case - width wise. it is a rather long as well PSU and limits some options in the bottom of the case. Fan is a little louder than I would like, but depending on your environment it may not be noticeable.

Overall Review: I am writing a new review - see the previous. I contacted Seasonic because I couldn't believe the fan should be on constantly and at that high sound. Turns out it was a problem with the PSU. while I was a little disappointed with their follow up - I didn't know what the error was, but hey they sent it back so it's good. Anyway, got it installed. Works well and hybrid switch does work now. Fan I don't think comes on with my current draw. When I switch to normal mode I can hear it, even in a case designed for sound reduction. I have the fan side down. If this were set on the floor or further away I probably wouldn't notice it, but since I have it on my desk to stay away from pet dander / dust I can hear it. Not a deal breaker, but not sure I have the "one." it's not really fair to call this a con, but it is pretty big and there's no way I can install the Fractal Design water cooler in the bottom as I can't have a PSU longer than 165mm. Anyway, Seasonic did fix in my RMA so I am looking for a 4.5 egg rating since there isn't one I'd go with 5. It's not their fault if I'm picking on it for not being exactly perfect for my set up. I purchased this item for the price, reputation and because it gives me no restrictions in the future and this item still satisfies those.

Pros: Okay, so I just added a second R9 290 to my system end thought I should upgrade my 760W Seasonic SS-XP2 to this beast, and let me tell this thing is amazing. It powers my 290 Vapor X Crossfire no problem, + 4 HDDS and 4 SSDs with a i7 2600K at 4.6ghz. Seriously power to the moon as they say. I love that Seasonic stuck to their classic and simple and understated smooth box aesthetic, many manufacturer like Corsair and EVGA are moving toward curve designs with really ugly grills and texture, which I don't personally like very much. Also the packaging is second to none as always, it's always a pleasure to keep unbox these masterpiece of hardware. Seasonic please keep it up :) I love metal badge.

Cons: On to the con as the title suggest, I was shocked at how loud the fan on this unit is, because isn't true that both my old unit the Seasonic SS-760XP2 Platinum and this unit have the same Senyo 120mm fan? The SsS-760XP2 was dead silent even when I turn off Hybrid I couldn't hear the fan no matter how hard I tried. So why is it that this is unit is so much louder? is the default RPM much higher than the 760W? I won't take off an egg since it's just a minor annoyance and a almost perfect product.

Overall Review: You might also wanna pick up some new Cable Mod's custom sleeves for this bad boy because they look amazing. Definitely Deserving of jonnyguru's 9.8/10 You should go read his review if you wanna know more on why this thing is a such a beast.

Pros: seems like a reliable PSU. worked the first time. my system seems more stable now and starts up faster. I would recommend this to anyone who has a rig with lots of extras, like expansion cards and drives.

Cons: none

Overall Review: I purchased this because I was using and older 1000W PSU and having some very strange issues with my computer (crashing, long startup times, etc.). decided on seasonic because I have used their PSU's before on smaller builds and was always satisfied with their quality.

Pros: A power supply is only as good as the company who backs it. I did have the bad experiance of the power supply going out on me. I did return the PSU and recieved a brand new one before I could turn around. In addition the PSU is very quite delivers great levels and other technicians I know where amazed when I told them I got this for 169 dollars on sale. So at the time I got a killer deal and a great company to deal with. I would highly recommend this PSU

Cons: none

Overall Review: The only minor gripe I have is the 24 pin cable. Sure it looks great being a super heavy duty sleved cable. I have garden hoses smaller in diameter then this. However that is the issue the cable is acutually to big. If they could make it a flatter cable that is sleved that would be better

Pros: Great performance, Much quieter than my x series 850w gold from Seasonic ( Could be dieing). This things also has better pressure fan or the way it's mounted makes it work better than the 850w.

Cons: None

Overall Review: Wish Seasonic could do a Flat 24 pin cable.