i have 10 sata hdds, and for years they would occasionally disconnect or get stuck repeatedly trying to spin up, often hanging or panicking my pc (thank you macos).

anyways, they were all powered on molex-to-3x-sata dongles, and in november on a whim i cut off the molex plugs and soldered the sata plugs directly to the psu cables.

it's been stable for a few months now, so im tentatively concluding those 4-pin connectors are not reliable..? is it just my cables or a known thing with molex?