As this is advertised to work with the power supply listed in its description I wanted to make sure it was compatible with the 'NZXT S650' for example is. that come with "H1". If you examine the power supply you will see that it is in fact a rebranded "seasonic SGX 650" with the same pinout and bus voltage. When I received the cable I tested it with my old Zotac GTX. 780 and was able to get the fan spinning and booting straight into Windows with no issues or shorts. Can I recommend this to NZXT H1 owners? Yes.