PCI-e is Not PCI
PCI Express (Peripheral Component Interconnect Expres, PCIe, PCI-e) is designed to replace the older PCI, PCI-X and AGP bus standards. There is still older PCI slot on some motherboard, however our converter card only support PCI-e standard. PCI-e card does not work on PCI slot, and vice versa.
PCI-e and PCI slot looks similair, the easiest way to distiguish between them is the slot space. PCI-e have a shorter slot space in front, and PCI have a longer slot space in front.