10 Pcs Cables Pcie To X16 X8 X4 X1 Agp X8 Cable Mini Pcie Adapter 4pin 6pin Power Cord Expansion Slot Flexible For Graphics Card - Pc Hardware Cables & Adapters - AliExpress
PCI-E on G3, G4 and AGP G5
Amazon.com: A ADWITS PCI Express 3.0 x16 to PCIe-Based NVMe and AHCI SSD Adapter Card with Heat Sink, Fits M.2 (NGFF) Form Factor with Key M in Size 2230/2242/2260/2280 : Electronics
Custom PCI Slot Brackets for USB and DVI Ports - YouTube
Will AGP work in a PCI slot? - Quora
Accelerated Graphics Port - Wikipedia
PCI-E on G3, G4 and AGP G5
Throwback Thursday: Albatron Release ATOP AGP to PCI Adapter
PCI-Express to PCI card adapter for PC - Cablematic