*** Absolutely correct!
My local Computer tech said to make sure whether the ssd card is 3.3
or 5 volts.
If you plug a 3.3 volt card into a 5 volt power supply it will cook
instantly hence people having so many cards instantly die.
If you plug a 5 volt card into a 3.3 volt supply it will be flaky
and possibly die over a short time.
The unfortunate thing is, not one of the cards I checked has the
voltage marked on it and usually there are no instructions or
specifications included.
Check your power supply hard drive connector voltage. Go to
manufacturer/supplier web sites and verify the voltage of the card/s
you wish to purchase.
Roger