I think the only empty ports I saw on my power supply were 6 pins. So do you think I'd be ok if I got one if these https://www.amazon.com/dp/B07F9H1K5R/ref=cm_sw_r_cp_apa_glt_fabc_4AVSBFFZ4GYKWGMMQ0NS And connected the riser to the power supply?

What do "professional" miners use for mining with a 1080TI, or something that needs more than 6 pins of power?

Or should I just forget the riser altogether and get one of these https://www.amazon.com/dp/B07RWGC441/ref=cm_sw_r_cp_apa_glt_fabc_92FDY0250SZVVKT3NV3B, Leaving the GPU connected to it's regular power supply, just having it outside the tower still just connected up to the motherboard