Is this expected to work? Really? (test of abstraction levels).

[Zaphod Beeblebrox]

So... here's the product:

https://www.ebay.ca/itm/PCI-Express-PCI-e-to-PCI-Adapter-Card-PCIe-to-Dual-PCI-Expansion-Card-USB-3-0/383647797022?hash=item595330cf1e:g:O~kAAOSw0kxfGdIM

For those who don't want to click, we have PCIe 1x -->> usb3.0 -->> PCI
32bit/66.

Is that likely to work?  Is our abstraction of busses that powerful?  If I
plug, say, a PCI I/O controller with a floppy on it ... would that be
detected?

If not, is it a somewhat simple hack to make it work?