Pros: Powers my entire system and then some. I can't really hear the two 80mm fans at all. Of course sitting inside an Antec P182 case the PSU fans noise is non existent. I ran Crysis, Dead Space and Fallout 3 back-to-back for 6 hours straight and put my hand in front of the exhaust vents for the PSU and it was barely warm. It didn't even break a sweat at heavy game play. Impressive is a word I could use for this PSU. A three year warranty is definately a plus as most other companies warrant their PSU's at either one or two years.

Cons: An extensive review I had read at a site on the net had stated that there was a lot of caulk work and it uses Teapo capacitors was kind of a sloppy internal workmanship on Sigma's part. Having knowledge of electronic components I know that Teapo Caps are sort of on the cheap side of Caps. I would think for such handsome workmanship on the casing they would have put forth the same for the electrical components inside as-well. Also the review stated that it was originaly setup for a single fan but that the two fans were terminated as spliced together and then soldered into place. These are just some of the tid bits that I wouldn't really worry about but that could have been improved upon. This is the only reason I gave it four eggs instead of five.

Overall Review: I almost bought an Apevia and a CoolerMax but all the Apevia's I looked at only had a one year warranty. The one CoolerMax I looked at had a two year warranty, was rated at 750W and was $135. Would have been nice but a little out of my price range. Sigma is I believe actually owned by CoolerMax. Of course I could have mis read that. This PSU can power this system: AMD Athlon 64 X2 5000+ 4GB (1GB x 4) GeIL Ultra DDR2 800 PC2 6400 2, 1TB WD SATA HDD's Samsung DVD +-R/RW combo optical drive LG DVD +-R/RW combo optical drive HIS Radeon HD 4870 Turbo 512MB (256bit) GDDR5 video Creative SoundBlaster X-Fi Extreme Gamer sound card Buffalo NAS drive

Pros: They managed to get the shape right and covered the surface with an even coat of paint

Cons: I did a video reviewed, even though there is no talking, you can see just how wonderfully the power supply worked with my PC. Since the power supply decided to behave so wonderfully 1 day after my return period ended, I had to deal with sigma to get a RMA (they have no phone number so it is all done through email so you have to hope that they reply) The power supply is very heavy, but not due to the internal components but instead due to the casing where they added random thick parts to make the power supply feel heavy and thus justifying the price. Also doing a RMA with the company (actually raidmax) is annoying, I spent over $40 shipping it to them before I finally got a working unit back (took 2 tries)

Overall Review: (for those interested, the PC on the right is not a extremely old PC, I was too cheap to buy a new case so I used the case from a old compaq computer and threw in a new motherboard, CPU, memory, hard drive, videocard and cd drive.

Pros: Pretty cool looking, high power rating and quiet.

Cons: None so far.

Overall Review: Too many wires as always, but I knew this wasn't modular. I would rather have too many than not enough.

Pros: Very long cables with enough outputs to satisfy my need to expand even more. Seems to be pretty good quality and hasn't given me any problems yet.

Cons: Blue LED light is kind of annoying if the computer is left on in the dark, and I had a little trouble mounting it in the case. It seems it was a few millimeters too large.

Pros: Very solid and stable voltages, even when playing games like crysis. Cool looking blue LED lights, they go well with all the other blue LED lights I have in my case. Long cords! Especially if you have a long video card like I do and need that extra cord length to go around your video card to reach your hard drive. Also like how all the cords have a black mesh around them.

Cons: Not really a con, but after the first week of having it one of the screws on it came a little loose, and it started making a minor rattling noise, tightened the screw up and it stopped.

Overall Review: I used to only use antec PSU's, but when I made my new rig I was on a little bit of a budget so I broke down and bought this, turns out to be comprable to an antec in value.

Pros: Shielded wires

Cons: Not quite DOA. Installed this PSU in my Old XBlade case along with a new MB (ASUS M3A78-T AM2+/AM2 AMD 790GX HDMI ATX AMD Motherboard), CPU (AMD Phenom 9850 BLACK EDITION 2.5GHz Socket AM2+ 125W Quad-Core Processor Model HD985ZXAGHBOX), and memory (OCZ Reaper HPC 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 1066 (PC2 8500) Dual Channel Kit, all ordered from Newegg. On attempting to install XP, the computer shut down after about 10 minutes and would not start again for 10 hours. After that, the computer would boot, then shut down after 10 minutes. After several hours of (lets say diagnostics), I installed my old 450 W PSU and the computer worked find. RMA'd to Newegg.

Overall Review: Reviews were pretty good on this PSU. I just got a dud. If Newegg wasn't out of stock on it, I'd have just had it replaced. Ordered a CORSAIR CMPSU-650TX 650W to replace it. Newegg's great! I did the RMA online, bought the UPS shipping label through them and they refunded my money within 6 days.

Pros: Aluminum, Well Cooled, Good looks, Works well Solid voltages

Cons: Large, Heavy

Overall Review: I read many bad reviews on this but I must have got one of the exceptionally good ones. Ive owned this for over 3 years and it ran my old 775 system overclocked with 5 hdd and 2 bfg 8800gtx's in sli without any problems. It now runs my i7 system with no difficulties.

Pros: It didn't arrive dead, had plenty of connectors available and the cables were long enough but not to long to suit my needs.

Cons: none

Overall Review: The intake and exhaust fans point down, which could be a problem if your case isn't raised. Went well with a cooler master-rc-690-kkn1-gp case.