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' that came with it 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 supply voltage. When I received the cable I tested it on my old Zotac GTX 780 and was able to spin the fan and boot straight into Windows with no issues or shorts. Can I recommend this for NZXT H1 owners? Yes.