2Port SlimSAS SFF-8654 8i x2 to PCIe4.0/3.0 x16 Slot Adapter Card SFF8654 Riser Card for Network Graphics Video GPU PCIe4.0

["Requires motherboard and BIOS support bifurcation","PCIe4.0 Speed: PCIE X16 full bandwidth 4.0, GEN4 protocol, compatible with gen3gen4. Support 4 ports, connect 4xnvme solid state hard disk or 4xU2 hard disk.","PCIe x16 slot can be expanded by inserting a PCIe protocol expansion card with two SFF-8654 connectors. This provides greater bandwidth and faster transmission speeds","Using high-density low-impedance 4-layer circuit board, Slim sas8i connector, PCIE GEN4 connector, power-on LED indicator. Adopt step-down IC and high-current inductor.","Gen4 PCIe4.0, compatible with Gen3"]