OCIA.net has posted their review of the Sigma Shark SP-635 635 Watt Power Supply.
A quote from the article:
Sigma Shark SP-635 635 Watt Power Supply Review
I mean, what is a power supply? A rectangular box with electrical stuff in it and wires coming from it (I do understand what the stuff inside does, but I know that most don't). The box may be steel or aluminum; painted, plated, or anodized. The wires may be sleeved or not, modular or not. There will be a fan or two, they may have LEDs, or not. I guess that's why I found it rather refreshing to review the Sigma Shark. No, it isn't some kind of radical departure from the basic power supply, but it is a little different.
Sigma Shark SP-635 635 Watt Power Supply Review