I would caution against using cables from different power supplies, even if they're from the same manufacturer or the same line of PSUs. There's no guarantee the pinouts match and you could potentially fry your entire setup if the cables don't match up exactly. Unless you can absolutely 100% confirm that the cables are identical, don't take the risk.
You can verify with the manufacturer, but with Seasonic you should be fine using the same cables between those units. The thing to watch out for here is most power supply manufacturers, don't actually produce their own power supplies. So they'll use different OEM's for different PSU's. Seasonic is the exception, they produce their own power supplies and I would consider them a premium power supply OEM as well. They do produce power supplies and parts for a lot of manufacturers and typically on their high end units.If you ever do plug in an incompatible modular cable into a power supply, typically what you'll get is no power, and a solenoid switch sound when you press the power button.
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