if using risers this
https://www.parallelminer.com/product/18awg-pci-e-6pin-to-triple-8-pin-3-way-splitter-extension-cable-3x-62pin-cable/
in a desktop
https://www.amazon.com/gp/product/B08YRCKT1T/ref=ox_sc_saved_image_3?smid=A993382SP9O05&psc=1