Picked this up a few days ago, and while I'm not totally sure if it outclasses the Corsair cx430, I'm feeling pretty good about it. Even though it’s an OEM bulk version, you can tell the build quality is solid—from the chassis itself (even if it is grey) all the way down to the internal components, soldering, and the PCB. It comes with plenty of cables too, and they're actually long enough to work with.
It’s specifically the SeaSonic SS-400ET unit, revision C1W (so, one of the newer models). Compared to that older A1W revision you see reviewed all over the internet, the main upgrades here are beefier heatsinks and a much cleaner, higher-quality internal layout on the PCB. Plus, it hits that 80plus BRONZE certification.
Photo of the power supply (rev. C1W):
http://i39.tinypic.com/2pzlee9.jpg (shot over at Micro Center)
Here is a quick little test for this specific power supply version from Micro Center: LINK
http://www.seasonic.ru/products/items/2http://www.anandtech.com/show/2697/30 (this one tests the older A1W version)
You can really spot the difference between the A1W and C1W revisions.
The thing runs incredibly quiet.