While Providing twice the bandwidth of PCIe 3.0, the Gen 4.0 riser cable remains backward compatible with a maximum transfer rate of over 64Gb/s (bi-directional) and fully supports the 16GT/s bit rate of PCIe 4.0 devices.
Daowwui PCIE X1 Riser Cable Dual 90 Degree Right Angle PCIe 3.0 X1 To X1 Extension Cable 8Gbps PCI 1X Riser Card Ribbon Extender
Koanhinn PCIE X1 Riser Cable Dual Right Angle PCIe 3.0 X1 to X1 Cable 8Gbps PCI 1X Riser Card 20cm
Kaneorooir PCIE X1 Riser Cable Dual 90 Degree Right Angle PCIe 3.0 X1 To X1 Extension Cable 8Gbps PCI 1X Riser Card Ribbon Extender
Folceretsc PCIE X1 Riser Cable Dual 90 Degree Right Angle PCIe 3.0 X1 to X1 Extension Cable 8Gbps PCI Express 1X Riser Card - 5CM
SameeHome PCIE X1 Riser Cable Dual Angle PCIe 3.0 X1 to X1 Cable 8Gbps PCI 1X Riser Card 20cm
Asyduey PCIE X1 Riser Cable Dual 90 Degree Right Angle PCIe 3.0 X1 to X1 Extension Cable 8Gbps PCI Express 1X Riser Card 5cm