ADTLINK PCIe 4.0 x16 to x16 Male to Male/Female to Female Extension Cable for PCIe x16 Board to Board Jumpers Silver-Plated Wire Low Impedance Gen4 (K33FF(Tx to Tx/Rx to Rx), 20cm)

If your applications uses a mother board that needs to link to another PCB via PCIe, and that PCB has PCIe connectors instead of edge fingers, then the PCIe Jumper Assemblies may fit your need. All of the speed and flexibility of the original ADT Extender Assemblies, but for card-to-card applications.