Review on Optimize Your GPU Power With ASIAHORSE'S High Shielding Property 180° Flexible PCI Express 3.0 16X Cable - 20Cm Riser Card Extension Port Adapter by Tone Hatton

Yeah, this will work with PCIE 4.0, if you like losing 'MASSIVE' performance. I was a FOOL to even think for a second that this would work! You have been warned. This PCIE 4.0 is horrible in my book. There is no way this company actually verified this riser cables bandwidth. I would suggest spending more money and stay as far away from AsiaHorse PCIE 4.0 riser cables! I would like to mention I ordered some AsiaHorse PCIE sleeved power extensions. Those were horrible as well. That is 2 for 2 AsiaHorse products I have ordered that ended up being worthless. I hope this review helps the next consumer. You are just wasting your money and time with AsiaHorse!