OK, nevermind. Looks like I'm a douche
Went to check the adapters I've soldered to maybe take a photo. I've noticed only now that the max/rex/whatever-power has 20AWG wires, but only splitting from the first SATA connector to the second. Up to the first one from the board, it is 18AWG! Totaly missed it. So that's why it felt thicker

While the Evolve has only 20AWG everywhere.
Sorry for misleading ya and time to apologise to that Evolve unit (not that it's not a gutless wonder otherwise

).
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