CORSAIR HX Series CMPSU-520HX 520 W ATX12V v2.2 and EPS12V 2.91 SLI Certified CrossFire Ready 80 PLUS Certified Modular Active PFC Compatible with Core i7 Power Supply

Pros: If you laid out the amount of watts this thing can really put out, you could cover an area the size of Belgium. Modular cables made the right way, Watts truely rated at RMS. Quiet even under "full" load. Packaging could be saved and used as a stocking stuffer later in the year.

Cons: Could not be used to jump start an 87 civic and i had to buy a usb cup warmer as i could no longer warm my coffee on the back of my case.

Overall Review: I take this seriously. Very seriously. The room is white, high-ceilinged, interrupted by curves of steel equipment here and there. I am wearing safety goggles and my boots are lined with plastic bags. There is a multimeter to my left, a glass of water to my right, and beneath my chair a syringe filled with hydrocortisone. In front of me sits a test bed of parts all powered by the corsair 520hx. The powersupply is quiet, sturdy, a clean low gloss black paint covers it that somehow communicates both depth and solidity. I slowly reach towards the ignition button, hesitating every so slightly before engaging. One FX-60 fitted on an A8N32 being cooled by a Monsoon II TEC start it's whirring beeping routine. The 21" Monitor clicks on as the 8800gts's fan finesses air over it's hidden heatsink. Four sata drives react with vigor as they are ordered to life. The dangerous part is over. I checked the watts being fed, 517, the PSU scoffed in disgust as it's internal temp was only 103f.

Pros: Extremely quiet, stable power, steady on all rails. Cords are long and maneuverable enough to reach anywhere in an Antec P180 case. Best power supply I've ever had.

Cons: Its a bit pricey for a 520W, but you get what you pay for.

Pros: I replaced a 480w power supply that I think was having voltage issues. I read a few reviews on a number of power supplies, but in the end decided to go with Corsair even though their new to the PSU game. I was shocked when I powered up my PC to find how quiet this thing really is. My computer is 10x quiter than with my old Thermaltake PSU. My case is actually cooler (temperature wise) now and my components all seem very happy, since this thing has triple +12 rails @ 18A. The modular cabling is a real nice feature as well. The PSU doesn't take up a fan connector spot on my motherboard either and that's nice, cause now I can add another fan easily.

Cons: Short peripheral cables, but I'm able to make due okay.

Overall Review: I read somewhere that there is a rumor going around that Seasonic actually manufactures these. I've never owned a Seasonic PSU, but I've read a lot of good things about them. The Corsair HX520w is awesome so far. If I had to do it all over again though, I might have went for the HX620w, pre-planning for future upgrades.

Pros: Voltage is stable, powers my 8800GTS/e6400/2GB DDR675/HDs/DVDs no sweat. It's so quiet! The 4pin connector WILL reach any motherboard in the P180 case! It was a far stretch but the 4pin connector fit my P5B-E.

Cons: A bit pricey but you get what you pay for!

Pros: Nice build quality, quiet fan, modular cabling, nice looking paint scheme. Good 480 watt power rating on the 12v rails combined. Appears to be of manufactured by Seasonic, one of the best in the business.

Cons: Be aware that this unit comes with only qty 2 modular dual SATA power cables, it is easy to miss this. Corsair should have used qty 3 if not 4 as a minimum. What happens when you need to hook up qty 3 hard disk drives and a couple SATA DVD burners? The molex connectors do not do me any good here. I don't see anywhere on Corsair's web site or at Newegg where I can order extra modular cables for this Power Supply.

Overall Review: The System: ASUS P5B-E v1.01 Motherboard BIOS v0706 (Nov 15, 2006) INTEL Core2 Duo E6400 Processor CORSAIR XMS2 DDR2 Memory 2GB TWIN2X2048-6400C4 COOLER MASTER Centurion5 CAC-T05-UW Case CORSAIR HX520w Power Supply POWERCOLOR X1950 PRO Extreme 256MB Video Card SEAGATE Barracuda 7200.10 320GB SATA Hard Drive (Qty 3) SAMSUNG 18X DVD Burner Model SH-S182D LITE-ON Combo Drive SATA Model SHC-52S7K-05 SAMSUNG 205BW 20" Widescreen LCD Monitor

Pros: - Most stable PSU I have ever seen. Voltages are rock solid stable and hardly ever move. Unlike other PSU's where you can watch the voltages constantly go up and down. - For a 520 watt rated PSU this thing pumps out more amps than some 700 watt and above PSU's - Very high quality parts in this thing, made by seasonic. - Guaranteed to put out specs at 50 C. Much higher than most other PSU's. - Modular design. I can't ever go back to a non-modular PSU now. - Comes with a nice nylon bag to store the extra cables you don't use

Cons: - I tried to think of something but I don't have 1 single complaint with this PSU, and I usually can always find something to complain about.

Overall Review: I'm running the following with this PSU. ASUS P5N32-E SLI PLUS, e6600, 2 GB Patriot Extreme LLK PC6400, 2 8800 GTS 640 in SLI mode, 3 drives. Everything is o/c'ed as well. Rock solid stable. Can run Orthos for hours on end.

Pros: Modular cables. Quiet fan. This PSU feels heavy and well constructed. Came with a sticker for my case.

Cons: The EATX12V cable is to short. My power supply mounts at the bottom of my box (instead of top as usual). Given this placement, the EATX12V cable just barely makes it over my graphics card and over the CPU heat sink and fan (Asus P6T Deluxe motherboard). I have no spare cable at all to route it nicely, and it is dangerously close to the open CPU fan of my Core i7 CPU.

Pros: Corsair is just maddeningly awesome. This "little" PSU runs my 8800GT 512's (690/1705/1000) and my E8400 @ 4.0Ghz on my EVGA 780i with no hitches. Rock and roll.

Cons: I honestly cannot find any. You pay a premium for a premium product. This is the closest con I can think of.

Overall Review: Buy this PSU. It'll serve you well for years. If it doesn't, it has a 5 year warranty through Corsair.