PCI to PCI-Express conversion kit?

I have a DCS server.I need to add a controlenet card to this server.Controlnet card is PCI bus.But server doesnt have a PCI slot. I know almost all of the servers which is available in market doesnt have a PCI slot nowadays. Could you please suggest any PCI to PCI-Express converter?

magma box is one of the best PCI to PCI Express converter .Magma box is very suitable and reliable for Control system application. They have different models. You can check your system installation guide for choosing the suitable model