For the field attachable M12 connectors, the interlock material is stainless steel. The 813 and 823 series have an estimated mechanical service life of > 100 mating cycles. ... See also: Binder eyes ...

Seasonic officially calls the new connector the "Nvidia 12-pin PCIe Molex Micro-Fit 3.0 Connector", which suggests this is the very same proprietary connector designated for the next-generation ...