I used to open an old computer to install a new PCI card, now I'm thinking about the possiblity to have an external USB adapter to connect this card with modern laptop.
Is there a way to make such idea real using the same card driver ?
What's your PCI card?
A PCI USB Card could upgrade the peripheral ability for an old computer.
How old is your computer? (Hardware and software)
Or you want this?
It's the inverse already having a PCI card plugged in the PCI slot of the computer like any other cards like network card, but lookin for a way to connect it using USB instead of plugin it inside computer.
You still are not making any sense. What does the PCI card do?
A PCI card plugs into a PCI bus not a USB.
There is no such thing as a USB to PCI adapter.
There is pci-e to pci adapter on eBay.
So.
Get usb to pci-e adapter (commonly used for mining). Plug pci-e to pci adapter into it. Plug pci card into pci-e to pci adapter. I have no idea about software compatibility.