I looked at this thread when it was first started, and I find it
very hard to believe that the PSU was not at fault here.

You installed new PSU, then all three ssd's got smoked!!!
Your logic is one ssd is more damaged/smoked/blackend
than the others, so it must have been the culprit. This logic
has no basis for truth.

I am an engineer, and I work on electronic & software projects,
one of my duties is to try to destroy circuits by under volting/over volting/reverse polarity/etc..
the SSD look like they have been subjected to reverse polarity, however when I test circuits
to see how they react to reverse polarity, most of the time they have different degrees of visual
damage. Why? because parts like fets, voltage regs, diodes, etc.. they are not all manufactured
perfectly alike, so when fault happens some will pop/break circuit instantly, while others will
hang on a bit longer ultimately causing more damage.


Anyhow since the PSU was sent back to SilverStone without first testing the cables for correct voltage/polarity this is kind of moot now.