It’s these ones Ubit 【6PCS】 PCI-E Riser for Bitcoin Litecoin ETH Coin Mining 6PIN Powered PCIE Extension Cable GPU Riser Ethereum Mining ETH GPU Extension Cable PCIEX1 to PCIE X16 GPU Riser https://www.amazon.com/dp/B095CD8KHD/ref=cm_sw_r_cp_api_glt_fabc_KYXFB4FG99QWFPTWBVEN?_encoding=UTF8&psc=1