Why would you need 350W to be modular? You're going to have the 24pin, the 4/8pin and the molex and sata power cables being used, so what's left to be modular and not used?

Had me thinking hell no.. 1st of the word should makes me think they are not too sure about their product and the Splash thing makes me think briefly..

Not quite SFX: (W)125mm-(D)120mm-(H)63.5mm (Source: www.dirac.co.jp/tesla-cube-sfx-series/ Better wattage, but also larger. SX600-G still the most powerful within SFX specs; obviously, if you can afford the extra mm, then great, but depending on your build, thinking this is actually SFX could get you into trouble.

These are 25mm wider than the actual SFX specs (SFX = 100w x 125d x 63.5h). Even assuming that the screw holes line up in a standard SFX case, you'd have to make sure your case could handle the inch or so increase in width. Personally I don't think the form factor is adequate for so much power and heat, you have to have very loud fans to cool a high-end graphics card and CPU in such a small case, water cooled or not. Until the cooling technology is smaller and more efficient (and quieter), high-powered SFF builds will always be a compromise. I prefer relatively low-powered components for mini-ITX builds, where heat is not such an issue. I agree with Debat0r, a modular 350w SFX would be a lot more useful to the average builder.