pci express - How can I tell whether an old graphics card is PCIe or AGP? - Super User
Riser Card 27.3 mm. PCI-Express adapter 8X to 16X - Cablematic
2U PCI-AGP-PCI 64 bit Multi Riser Card R2MU64PCI
Video Adapter Interfaces - iFixit
What kind of expansion slot should you use for your video card?
AGP-to-PCI Adapter | Tech Support Forum
PCI-E on G3, G4 and AGP G5
Oscar Barea on X: "3dfx AGP2PCI adapter - Finally I started end projects. Here a new version AGP2PCI adapter compatible with 3dfx and VGA 3.3V AGP. This adapter is really small. You
2U PCI/AGP Riser Card 3 in 1 right angle riser card. - Walmart.com
CPU-World.com forums :: View topic - New AGP to PCI adaptors for sale